Basic to TBASIC Reference
Manual| ARCCOS (x) |
| Purpose | To return in radians, the arc sine (inverse sine) of the numeric expression x |
| Examples | A# = ARCCOS(0.5) FP[1] = ARCCOS(-3.1416*2) |
| Comments: | A# should contain the value 1.0471976 (radians) FP[1] should contain NaN which means invalid. |
Basic to TBASIC Reference
Manual