Character table for the C81 point group

C81     E        2 C81    2 C81^2  2 C27    2 C81^4  2 C81^5  2 C27^2  2 C81^7  2 C81^8  2 C9     2 C81^10 2 C81^11 2 C27^4  2 C81^13 2 C81^14 2 C27^5  2 C81^16 2 C81^17 2 C9^2   2 C81^19 2 C81^20 2 C27^7  2 C81^22 2 C81^23 2 C27^8  2 C81^25 2 C81^26 2 C3     2 C81^28 2 C81^29 2 C27^10 2 C81^31 2 C81^32 2 C27^11 2 C81^34 2 C81^35 2 C9^4   2 C81^37 2 C81^38 2 C27^13 2 C81^40    <R> <p> <—d—> <——f——> <———g———> <————h————> <—————i—————> 
A       1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000  1.00000     ..T ..T ....T ......T ........T ..........T ............T
E1  *   2.00000  1.99399  1.97598  1.94609  1.90450  1.85145  1.78727  1.71233  1.62710  1.53209  1.42786  1.31504  1.19432  1.06641  0.93209  0.79216  0.64747  0.49888  0.34730  0.19362  0.03878 -0.11629 -0.27066 -0.42341 -0.57361 -0.72036 -0.86277 -1.00000 -1.13121 -1.25562 -1.37248 -1.48109 -1.58079 -1.67098 -1.75112 -1.82073 -1.87939 -1.92674 -1.96251 -1.98648 -1.99850     TT. TT. ..TT. ....TT. ......TT. ........TT. ..........TT.
E2  *   2.00000  1.97598  1.90450  1.78727  1.62710  1.42786  1.19432  0.93209  0.64747  0.34730  0.03878 -0.27066 -0.57361 -0.86277 -1.13121 -1.37248 -1.58079 -1.75112 -1.87939 -1.96251 -1.99850 -1.98648 -1.92674 -1.82073 -1.67098 -1.48109 -1.25562 -1.00000 -0.72036 -0.42341 -0.11629  0.19362  0.49888  0.79216  1.06641  1.31504  1.53209  1.71233  1.85145  1.94609  1.99399     ... ... TT... ..TT... ....TT... ......TT... ........TT...
E3  *   2.00000  1.94609  1.78727  1.53209  1.19432  0.79216  0.34730 -0.11629 -0.57361 -1.00000 -1.37248 -1.67098 -1.87939 -1.98648 -1.98648 -1.87939 -1.67098 -1.37248 -1.00000 -0.57361 -0.11629  0.34730  0.79216  1.19432  1.53209  1.78727  1.94609  2.00000  1.94609  1.78727  1.53209  1.19432  0.79216  0.34730 -0.11629 -0.57361 -1.00000 -1.37248 -1.67098 -1.87939 -1.98648     ... ... ..... TT..... ..TT..... ....TT..... ......TT.....
E4  *   2.00000  1.90450  1.62710  1.19432  0.64747  0.03878 -0.57361 -1.13121 -1.58079 -1.87939 -1.99850 -1.92674 -1.67098 -1.25562 -0.72036 -0.11629  0.49888  1.06641  1.53209  1.85145  1.99399  1.94609  1.71233  1.31504  0.79216  0.19362 -0.42341 -1.00000 -1.48109 -1.82073 -1.98648 -1.96251 -1.75112 -1.37248 -0.86277 -0.27066  0.34730  0.93209  1.42786  1.78727  1.97598     ... ... ..... ....... TT....... ..TT....... ....TT.......
E5  *   2.00000  1.85145  1.42786  0.79216  0.03878 -0.72036 -1.37248 -1.82073 -1.99850 -1.87939 -1.48109 -0.86277 -0.11629  0.64747  1.31504  1.78727  1.99399  1.90450  1.53209  0.93209  0.19362 -0.57361 -1.25562 -1.75112 -1.98648 -1.92674 -1.58079 -1.00000 -0.27066  0.49888  1.19432  1.71233  1.97598  1.94609  1.62710  1.06641  0.34730 -0.42341 -1.13121 -1.67098 -1.96251     ... ... ..... ....... ......... TT......... ..TT.........
E6  *   2.00000  1.78727  1.19432  0.34730 -0.57361 -1.37248 -1.87939 -1.98648 -1.67098 -1.00000 -0.11629  0.79216  1.53209  1.94609  1.94609  1.53209  0.79216 -0.11629 -1.00000 -1.67098 -1.98648 -1.87939 -1.37248 -0.57361  0.34730  1.19432  1.78727  2.00000  1.78727  1.19432  0.34730 -0.57361 -1.37248 -1.87939 -1.98648 -1.67098 -1.00000 -0.11629  0.79216  1.53209  1.94609     ... ... ..... ....... ......... ........... TT...........
E7  *   2.00000  1.71233  0.93209 -0.11629 -1.13121 -1.82073 -1.98648 -1.58079 -0.72036  0.34730  1.31504  1.90450  1.94609  1.42786  0.49888 -0.57361 -1.48109 -1.96251 -1.87939 -1.25562 -0.27066  0.79216  1.62710  1.99399  1.78727  1.06641  0.03878 -1.00000 -1.75112 -1.99850 -1.67098 -0.86277  0.19362  1.19432  1.85145  1.97598  1.53209  0.64747 -0.42341 -1.37248 -1.92674     ... ... ..... ....... ......... ........... .............
E8  *   2.00000  1.62710  0.64747 -0.57361 -1.58079 -1.99850 -1.67098 -0.72036  0.49888  1.53209  1.99399  1.71233  0.79216 -0.42341 -1.48109 -1.98648 -1.75112 -0.86277  0.34730  1.42786  1.97598  1.78727  0.93209 -0.27066 -1.37248 -1.96251 -1.82073 -1.00000  0.19362  1.31504  1.94609  1.85145  1.06641 -0.11629 -1.25562 -1.92674 -1.87939 -1.13121  0.03878  1.19432  1.90450     ... ... ..... ....... ......... ........... .............
E9  *   2.00000  1.53209  0.34730 -1.00000 -1.87939 -1.87939 -1.00000  0.34730  1.53209  2.00000  1.53209  0.34730 -1.00000 -1.87939 -1.87939 -1.00000  0.34730  1.53209  2.00000  1.53209  0.34730 -1.00000 -1.87939 -1.87939 -1.00000  0.34730  1.53209  2.00000  1.53209  0.34730 -1.00000 -1.87939 -1.87939 -1.00000  0.34730  1.53209  2.00000  1.53209  0.34730 -1.00000 -1.87939     ... ... ..... ....... ......... ........... .............
E10 *   2.00000  1.42786  0.03878 -1.37248 -1.99850 -1.48109 -0.11629  1.31504  1.99399  1.53209  0.19362 -1.25562 -1.98648 -1.58079 -0.27066  1.19432  1.97598  1.62710  0.34730 -1.13121 -1.96251 -1.67098 -0.42341  1.06641  1.94609  1.71233  0.49888 -1.00000 -1.92674 -1.75112 -0.57361  0.93209  1.90450  1.78727  0.64747 -0.86277 -1.87939 -1.82073 -0.72036  0.79216  1.85145     ... ... ..... ....... ......... ........... .............
E11 *   2.00000  1.31504 -0.27066 -1.67098 -1.92674 -0.86277  0.79216  1.90450  1.71233  0.34730 -1.25562 -1.99850 -1.37248  0.19362  1.62710  1.94609  0.93209 -0.72036 -1.87939 -1.75112 -0.42341  1.19432  1.99399  1.42786 -0.11629 -1.58079 -1.96251 -1.00000  0.64747  1.85145  1.78727  0.49888 -1.13121 -1.98648 -1.48109  0.03878  1.53209  1.97598  1.06641 -0.57361 -1.82073     ... ... ..... ....... ......... ........... .............
E12 *   2.00000  1.19432 -0.57361 -1.87939 -1.67098 -0.11629  1.53209  1.94609  0.79216 -1.00000 -1.98648 -1.37248  0.34730  1.78727  1.78727  0.34730 -1.37248 -1.98648 -1.00000  0.79216  1.94609  1.53209 -0.11629 -1.67098 -1.87939 -0.57361  1.19432  2.00000  1.19432 -0.57361 -1.87939 -1.67098 -0.11629  1.53209  1.94609  0.79216 -1.00000 -1.98648 -1.37248  0.34730  1.78727     ... ... ..... ....... ......... ........... .............
E13 *   2.00000  1.06641 -0.86277 -1.98648 -1.25562  0.64747  1.94609  1.42786 -0.42341 -1.87939 -1.58079  0.19362  1.78727  1.71233  0.03878 -1.67098 -1.82073 -0.27066  1.53209  1.90450  0.49888 -1.37248 -1.96251 -0.72036  1.19432  1.99399  0.93209 -1.00000 -1.99850 -1.13121  0.79216  1.97598  1.31504 -0.57361 -1.92674 -1.48109  0.34730  1.85145  1.62710 -0.11629 -1.75112     ... ... ..... ....... ......... ........... .............
E14 *   2.00000  0.93209 -1.13121 -1.98648 -0.72036  1.31504  1.94609  0.49888 -1.48109 -1.87939 -0.27066  1.62710  1.78727  0.03878 -1.75112 -1.67098  0.19362  1.85145  1.53209 -0.42341 -1.92674 -1.37248  0.64747  1.97598  1.19432 -0.86277 -1.99850 -1.00000  1.06641  1.99399  0.79216 -1.25562 -1.96251 -0.57361  1.42786  1.90450  0.34730 -1.58079 -1.82073 -0.11629  1.71233     ... ... ..... ....... ......... ........... .............
E15 *   2.00000  0.79216 -1.37248 -1.87939 -0.11629  1.78727  1.53209 -0.57361 -1.98648 -1.00000  1.19432  1.94609  0.34730 -1.67098 -1.67098  0.34730  1.94609  1.19432 -1.00000 -1.98648 -0.57361  1.53209  1.78727 -0.11629 -1.87939 -1.37248  0.79216  2.00000  0.79216 -1.37248 -1.87939 -0.11629  1.78727  1.53209 -0.57361 -1.98648 -1.00000  1.19432  1.94609  0.34730 -1.67098     ... ... ..... ....... ......... ........... .............
E16 *   2.00000  0.64747 -1.58079 -1.67098  0.49888  1.99399  0.79216 -1.48109 -1.75112  0.34730  1.97598  0.93209 -1.37248 -1.82073  0.19362  1.94609  1.06641 -1.25562 -1.87939  0.03878  1.90450  1.19432 -1.13121 -1.92674 -0.11629  1.85145  1.31504 -1.00000 -1.96251 -0.27066  1.78727  1.42786 -0.86277 -1.98648 -0.42341  1.71233  1.53209 -0.72036 -1.99850 -0.57361  1.62710     ... ... ..... ....... ......... ........... .............
E17 *   2.00000  0.49888 -1.75112 -1.37248  1.06641  1.90450 -0.11629 -1.96251 -0.86277  1.53209  1.62710 -0.72036 -1.98648 -0.27066  1.85145  1.19432 -1.25562 -1.82073  0.34730  1.99399  0.64747 -1.67098 -1.48109  0.93209  1.94609  0.03878 -1.92674 -1.00000  1.42786  1.71233 -0.57361 -1.99850 -0.42341  1.78727  1.31504 -1.13121 -1.87939  0.19362  1.97598  0.79216 -1.58079     ... ... ..... ....... ......... ........... .............
E18 *   2.00000  0.34730 -1.87939 -1.00000  1.53209  1.53209 -1.00000 -1.87939  0.34730  2.00000  0.34730 -1.87939 -1.00000  1.53209  1.53209 -1.00000 -1.87939  0.34730  2.00000  0.34730 -1.87939 -1.00000  1.53209  1.53209 -1.00000 -1.87939  0.34730  2.00000  0.34730 -1.87939 -1.00000  1.53209  1.53209 -1.00000 -1.87939  0.34730  2.00000  0.34730 -1.87939 -1.00000  1.53209     ... ... ..... ....... ......... ........... .............
E19 *   2.00000  0.19362 -1.96251 -0.57361  1.85145  0.93209 -1.67098 -1.25562  1.42786  1.53209 -1.13121 -1.75112  0.79216  1.90450 -0.42341 -1.98648  0.03878  1.99399  0.34730 -1.92674 -0.72036  1.78727  1.06641 -1.58079 -1.37248  1.31504  1.62710 -1.00000 -1.82073  0.64747  1.94609 -0.27066 -1.99850 -0.11629  1.97598  0.49888 -1.87939 -0.86277  1.71233  1.19432 -1.48109     ... ... ..... ....... ......... ........... .............
E20 *   2.00000  0.03878 -1.99850 -0.11629  1.99399  0.19362 -1.98648 -0.27066  1.97598  0.34730 -1.96251 -0.42341  1.94609  0.49888 -1.92674 -0.57361  1.90450  0.64747 -1.87939 -0.72036  1.85145  0.79216 -1.82073 -0.86277  1.78727  0.93209 -1.75112 -1.00000  1.71233  1.06641 -1.67098 -1.13121  1.62710  1.19432 -1.58079 -1.25562  1.53209  1.31504 -1.48109 -1.37248  1.42786     ... ... ..... ....... ......... ........... .............
E21 *   2.00000 -0.11629 -1.98648  0.34730  1.94609 -0.57361 -1.87939  0.79216  1.78727 -1.00000 -1.67098  1.19432  1.53209 -1.37248 -1.37248  1.53209  1.19432 -1.67098 -1.00000  1.78727  0.79216 -1.87939 -0.57361  1.94609  0.34730 -1.98648 -0.11629  2.00000 -0.11629 -1.98648  0.34730  1.94609 -0.57361 -1.87939  0.79216  1.78727 -1.00000 -1.67098  1.19432  1.53209 -1.37248     ... ... ..... ....... ......... ........... .............
E22 *   2.00000 -0.27066 -1.92674  0.79216  1.71233 -1.25562 -1.37248  1.62710  0.93209 -1.87939 -0.42341  1.99399 -0.11629 -1.96251  0.64747  1.78727 -1.13121 -1.48109  1.53209  1.06641 -1.82073 -0.57361  1.97598  0.03878 -1.98648  0.49888  1.85145 -1.00000 -1.58079  1.42786  1.19432 -1.75112 -0.72036  1.94609  0.19362 -1.99850  0.34730  1.90450 -0.86277 -1.67098  1.31504     ... ... ..... ....... ......... ........... .............
E23 *   2.00000 -0.42341 -1.82073  1.19432  1.31504 -1.75112 -0.57361  1.99399 -0.27066 -1.87939  1.06641  1.42786 -1.67098 -0.72036  1.97598 -0.11629 -1.92674  0.93209  1.53209 -1.58079 -0.86277  1.94609  0.03878 -1.96251  0.79216  1.62710 -1.48109 -1.00000  1.90450  0.19362 -1.98648  0.64747  1.71233 -1.37248 -1.13121  1.85145  0.34730 -1.99850  0.49888  1.78727 -1.25562     ... ... ..... ....... ......... ........... .............
E24 *   2.00000 -0.57361 -1.67098  1.53209  0.79216 -1.98648  0.34730  1.78727 -1.37248 -1.00000  1.94609 -0.11629 -1.87939  1.19432  1.19432 -1.87939 -0.11629  1.94609 -1.00000 -1.37248  1.78727  0.34730 -1.98648  0.79216  1.53209 -1.67098 -0.57361  2.00000 -0.57361 -1.67098  1.53209  0.79216 -1.98648  0.34730  1.78727 -1.37248 -1.00000  1.94609 -0.11629 -1.87939  1.19432     ... ... ..... ....... ......... ........... .............
E25 *   2.00000 -0.72036 -1.48109  1.78727  0.19362 -1.92674  1.19432  1.06641 -1.96251  0.34730  1.71233 -1.58079 -0.57361  1.99399 -0.86277 -1.37248  1.85145  0.03878 -1.87939  1.31504  0.93209 -1.98648  0.49888  1.62710 -1.67098 -0.42341  1.97598 -1.00000 -1.25562  1.90450 -0.11629 -1.82073  1.42786  0.79216 -1.99850  0.64747  1.53209 -1.75112 -0.27066  1.94609 -1.13121     ... ... ..... ....... ......... ........... .............
E26 *   2.00000 -0.86277 -1.25562  1.94609 -0.42341 -1.58079  1.78727  0.03878 -1.82073  1.53209  0.49888 -1.96251  1.19432  0.93209 -1.99850  0.79216  1.31504 -1.92674  0.34730  1.62710 -1.75112 -0.11629  1.85145 -1.48109 -0.57361  1.97598 -1.13121 -1.00000  1.99399 -0.72036 -1.37248  1.90450 -0.27066 -1.67098  1.71233  0.19362 -1.87939  1.42786  0.64747 -1.98648  1.06641     ... ... ..... ....... ......... ........... .............
E27 *   2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000 -1.00000  2.00000 -1.00000     ... ... ..... ....... ......... ........... .............
E28 *   2.00000 -1.13121 -0.72036  1.94609 -1.48109 -0.27066  1.78727 -1.75112  0.19362  1.53209 -1.92674  0.64747  1.19432 -1.99850  1.06641  0.79216 -1.96251  1.42786  0.34730 -1.82073  1.71233 -0.11629 -1.58079  1.90450 -0.57361 -1.25562  1.99399 -1.00000 -0.86277  1.97598 -1.37248 -0.42341  1.85145 -1.67098  0.03878  1.62710 -1.87939  0.49888  1.31504 -1.98648  0.93209     ... ... ..... ....... ......... ........... .............
E29 *   2.00000 -1.25562 -0.42341  1.78727 -1.82073  0.49888  1.19432 -1.99850  1.31504  0.34730 -1.75112  1.85145 -0.57361 -1.13121  1.99399 -1.37248 -0.27066  1.71233 -1.87939  0.64747  1.06641 -1.98648  1.42786  0.19362 -1.67098  1.90450 -0.72036 -1.00000  1.97598 -1.48109 -0.11629  1.62710 -1.92674  0.79216  0.93209 -1.96251  1.53209  0.03878 -1.58079  1.94609 -0.86277     ... ... ..... ....... ......... ........... .............
E30 *   2.00000 -1.37248 -0.11629  1.53209 -1.98648  1.19432  0.34730 -1.67098  1.94609 -1.00000 -0.57361  1.78727 -1.87939  0.79216  0.79216 -1.87939  1.78727 -0.57361 -1.00000  1.94609 -1.67098  0.34730  1.19432 -1.98648  1.53209 -0.11629 -1.37248  2.00000 -1.37248 -0.11629  1.53209 -1.98648  1.19432  0.34730 -1.67098  1.94609 -1.00000 -0.57361  1.78727 -1.87939  0.79216     ... ... ..... ....... ......... ........... .............
E31 *   2.00000 -1.48109  0.19362  1.19432 -1.96251  1.71233 -0.57361 -0.86277  1.85145 -1.87939  0.93209  0.49888 -1.67098  1.97598 -1.25562 -0.11629  1.42786 -1.99850  1.53209 -0.27066 -1.13121  1.94609 -1.75112  0.64747  0.79216 -1.82073  1.90450 -1.00000 -0.42341  1.62710 -1.98648  1.31504  0.03878 -1.37248  1.99399 -1.58079  0.34730  1.06641 -1.92674  1.78727 -0.72036     ... ... ..... ....... ......... ........... .............
E32 *   2.00000 -1.58079  0.49888  0.79216 -1.75112  1.97598 -1.37248  0.19362  1.06641 -1.87939  1.90450 -1.13121 -0.11629  1.31504 -1.96251  1.78727 -0.86277 -0.42341  1.53209 -1.99850  1.62710 -0.57361 -0.72036  1.71233 -1.98648  1.42786 -0.27066 -1.00000  1.85145 -1.92674  1.19432  0.03878 -1.25562  1.94609 -1.82073  0.93209  0.34730 -1.48109  1.99399 -1.67098  0.64747     ... ... ..... ....... ......... ........... .............
E33 *   2.00000 -1.67098  0.79216  0.34730 -1.37248  1.94609 -1.87939  1.19432 -0.11629 -1.00000  1.78727 -1.98648  1.53209 -0.57361 -0.57361  1.53209 -1.98648  1.78727 -1.00000 -0.11629  1.19432 -1.87939  1.94609 -1.37248  0.34730  0.79216 -1.67098  2.00000 -1.67098  0.79216  0.34730 -1.37248  1.94609 -1.87939  1.19432 -0.11629 -1.00000  1.78727 -1.98648  1.53209 -0.57361     ... ... ..... ....... ......... ........... .............
E34 *   2.00000 -1.75112  1.06641 -0.11629 -0.86277  1.62710 -1.98648  1.85145 -1.25562  0.34730  0.64747 -1.48109  1.94609 -1.92674  1.42786 -0.57361 -0.42341  1.31504 -1.87939  1.97598 -1.58079  0.79216  0.19362 -1.13121  1.78727 -1.99850  1.71233 -1.00000  0.03878  0.93209 -1.67098  1.99399 -1.82073  1.19432 -0.27066 -0.72036  1.53209 -1.96251  1.90450 -1.37248  0.49888     ... ... ..... ....... ......... ........... .............
E35 *   2.00000 -1.82073  1.31504 -0.57361 -0.27066  1.06641 -1.67098  1.97598 -1.92674  1.53209 -0.86277  0.03878  0.79216 -1.48109  1.90450 -1.98648  1.71233 -1.13121  0.34730  0.49888 -1.25562  1.78727 -1.99850  1.85145 -1.37248  0.64747  0.19362 -1.00000  1.62710 -1.96251  1.94609 -1.58079  0.93209 -0.11629 -0.72036  1.42786 -1.87939  1.99399 -1.75112  1.19432 -0.42341     ... ... ..... ....... ......... ........... .............
E36 *   2.00000 -1.87939  1.53209 -1.00000  0.34730  0.34730 -1.00000  1.53209 -1.87939  2.00000 -1.87939  1.53209 -1.00000  0.34730  0.34730 -1.00000  1.53209 -1.87939  2.00000 -1.87939  1.53209 -1.00000  0.34730  0.34730 -1.00000  1.53209 -1.87939  2.00000 -1.87939  1.53209 -1.00000  0.34730  0.34730 -1.00000  1.53209 -1.87939  2.00000 -1.87939  1.53209 -1.00000  0.34730     ... ... ..... ....... ......... ........... .............
E37 *   2.00000 -1.92674  1.71233 -1.37248  0.93209 -0.42341 -0.11629  0.64747 -1.13121  1.53209 -1.82073  1.97598 -1.98648  1.85145 -1.58079  1.19432 -0.72036  0.19362  0.34730 -0.86277  1.31504 -1.67098  1.90450 -1.99850  1.94609 -1.75112  1.42786 -1.00000  0.49888  0.03878 -0.57361  1.06641 -1.48109  1.78727 -1.96251  1.99399 -1.87939  1.62710 -1.25562  0.79216 -0.27066     ... ... ..... ....... ......... ........... .............
E38 *   2.00000 -1.96251  1.85145 -1.67098  1.42786 -1.13121  0.79216 -0.42341  0.03878  0.34730 -0.72036  1.06641 -1.37248  1.62710 -1.82073  1.94609 -1.99850  1.97598 -1.87939  1.71233 -1.48109  1.19432 -0.86277  0.49888 -0.11629 -0.27066  0.64747 -1.00000  1.31504 -1.58079  1.78727 -1.92674  1.99399 -1.98648  1.90450 -1.75112  1.53209 -1.25562  0.93209 -0.57361  0.19362     ... ... ..... ....... ......... ........... .............
E39 *   2.00000 -1.98648  1.94609 -1.87939  1.78727 -1.67098  1.53209 -1.37248  1.19432 -1.00000  0.79216 -0.57361  0.34730 -0.11629 -0.11629  0.34730 -0.57361  0.79216 -1.00000  1.19432 -1.37248  1.53209 -1.67098  1.78727 -1.87939  1.94609 -1.98648  2.00000 -1.98648  1.94609 -1.87939  1.78727 -1.67098  1.53209 -1.37248  1.19432 -1.00000  0.79216 -0.57361  0.34730 -0.11629     ... ... ..... ....... ......... ........... .............
E40 *   2.00000 -1.99850  1.99399 -1.98648  1.97598 -1.96251  1.94609 -1.92674  1.90450 -1.87939  1.85145 -1.82073  1.78727 -1.75112  1.71233 -1.67098  1.62710 -1.58079  1.53209 -1.48109  1.42786 -1.37248  1.31504 -1.25562  1.19432 -1.13121  1.06641 -1.00000  0.93209 -0.86277  0.79216 -0.72036  0.64747 -0.57361  0.49888 -0.42341  0.34730 -0.27066  0.19362 -0.11629  0.03878     ... ... ..... ....... ......... ........... .............

 Irrational character values:  1.993985882336 = 2*cos(2*π/81)
                               1.975979698954 = 2*cos(4*π/81)
                               1.946089741160 = 2*cos(6*π/81) = 2*cos(2*π/27)
                               1.904495770677 = 2*cos(8*π/81)
                               1.851447938538 = 2*cos(10*π/81)
                               1.787265280647 = 2*cos(12*π/81) = 2*cos(4*π/27)
                               1.712333799061 = 2*cos(14*π/81)
                               1.627104140526 = 2*cos(16*π/81)
                               1.532088886238 = 2*cos(18*π/81) = 2*cos(2*π/9)
                               1.427859469116 = 2*cos(20*π/81)
                               1.315042737138 = 2*cos(22*π/81)
                               1.194317183406 = 2*cos(24*π/81) = 2*cos(8*π/27)
                               1.066408865603 = 2*cos(26*π/81)
                               0.932087039405 = 2*cos(28*π/81)
                               0.792159532078 = 2*cos(30*π/81) = 2*cos(10*π/27)
                               0.647467884117 = 2*cos(32*π/81)
                               0.498882288116 = 2*cos(34*π/81)
                               0.347296355334 = 2*cos(36*π/81) = 2*cos(4*π/9)
                               0.193621741406 = 2*cos(38*π/81)
                               0.038782663544 = 2*cos(40*π/81)
                              -0.116289657821 = 2*cos(42*π/81) = 2*cos(14*π/27)
                              -0.270662599500 = 2*cos(44*π/81)
                              -0.423407744459 = 2*cos(46*π/81)
                              -0.573606465422 = 2*cos(48*π/81) = 2*cos(16*π/27)
                              -0.720355449609 = 2*cos(50*π/81)
                              -0.862772131363 = 2*cos(52*π/81)
                              -1.131213750973 = 2*cos(56*π/81)
                              -1.255624249344 = 2*cos(58*π/81)
                              -1.372483275737 = 2*cos(60*π/81) = 2*cos(20*π/27)
                              -1.481088026218 = 2*cos(62*π/81)
                              -1.580785339038 = 2*cos(64*π/81)
                              -1.670975622826 = 2*cos(66*π/81) = 2*cos(22*π/27)
                              -1.751116462604 = 2*cos(68*π/81)
                              -1.820725881932 = 2*cos(70*π/81)
                              -1.879385241572 = 2*cos(72*π/81) = 2*cos(8*π/9)
                              -1.926741757232 = 2*cos(74*π/81)
                              -1.962510621255 = 2*cos(76*π/81)
                              -1.986476715484 = 2*cos(78*π/81) = 2*cos(26*π/27)
                              -1.998495905008 = 2*cos(80*π/81)



 Symmetry of Rotations and Cartesian products

A    R+p+d+f+g+h+i+j+k+l+m  Rz, z, z2, z3, z4, z5, z6 
E1   R+p+d+f+g+h+i+j+k+l+m  {Rx, Ry}, {x, y}, {xz, yz}, {xz2, yz2}, {xz3, yz3}, {xz4, yz4}, {xz5, yz5} 
E2   d+f+g+h+i+j+k+l+m      {x2y2, xy}, {z(x2y2), xyz}, {z2(x2y2), xyz2}, {z3(x2y2), xyz3}, {z4(x2y2), xyz4} 
E3   f+g+h+i+j+k+l+m        {x(x2−3y2), y(3x2y2)}, {xz(x2−3y2), yz(3x2y2)}, {xz2(x2−3y2), yz2(3x2y2)}, {xz3(x2−3y2), yz3(3x2y2)} 
E4   g+h+i+j+k+l+m          {(x2y2)2−4x2y2, xy(x2y2)}, {z((x2y2)2−4x2y2), xyz(x2y2)}, {z2((x2y2)2−4x2y2), xyz2(x2y2)} 
E5   h+i+j+k+l+m            {x(x2−(5+2√5)y2)(x2−(5−2√5)y2), y((5+2√5)x2y2)((5−2√5)x2y2)}, {xz(x2−(5+2√5)y2)(x2−(5−2√5)y2), yz((5+2√5)x2y2)((5−2√5)x2y2)} 
E6   i+j+k+l+m              {x2(x2−3y2)2y2(3x2y2)2, xy(x2−3y2)(3x2y2)} 
E7   j+k+l+m 
E8   k+l+m 
E9   l+m 
E10  m 

 Notes:

    α  The order of the C81 point group is 81, and the order of the principal axis (C81) is 81. The group has 41 irreducible representations.

    β  The C81 point group is generated by one single symmetry element, C81. Therefore, it is a cyclic group.

    γ  The lowest nonvanishing multipole moment in C81 is 2 (dipole moment).

    δ  This is an Abelian point group (the commutative law holds between all symmetry operations).
       The C81 group is Abelian because it contains only one symmetry element, all the powers of which necessarily commute (sufficient condition).
       In Abelian groups, all symmetry operations form a class of their own, and all irreducible representations are one-dimensional.

    ε  Because the group is Abelian and the maximum order of rotation is >2, some irreducible representations have complex characters.
       These 80 cases have been combined into 40 two-dimensional representations that are no longer irreducible but have real-valued characters.
       Accordingly, 40 pairs of left and right rotations have been combined into one two-membered pseudo-class each.

    ζ  The 40 reducible “E” representations almost behave like true irreducible representations.
       Their norm, however, is twice the group order. Therefore, they have been marked with an asterisk in the table.
       This is essential when trying to decompose a reducible representation into “irreducible” ones using the familiar projection formula.

    η  The point group is chiral, as it does not contain any mirroring operation.

    θ  Some of the characters in the table are irrational because the order of the principal axis is neither 1,2,3,4 nor 6.
       These irrational values can be expressed as cosine values, or as solutions of algebraic equations with a leading coefficient of 1.
       All characters are algebraic integers of a degree much less than half the order of the principal axis.

    ι  The point group corresponds to a polygon inconstructible by the classical means of ruler and compass. Yet it becomes constructible
       if angle trisection is allowed, e.g., with neusis construction or origami. This is because the order of the principal axis is given
       by a product of any number of different Pierpont primes (...,5,7,13,17,19,37,73,97,109,163,...) times arbitrary powers of two and three.
       All characters of this group can be expressed using complex numbers, elementary arithmetic operations, square roots and third roots.

This Character Table for the C81 point group was created by Gernot Katzer.

For other groups and some explanations, see the Main Page.