acosinus, asinus, atan

Format:

acos*inus(float_expr $\Vert$ vector_expr)
asin*us(float_expr $\Vert$ vector_expr)
atan(float_expr $\Vert$ vector_expr)

Result:

Number, vector

Description:

Returns the inverse cosines, sine and tan in [rad].

e.g.:

SPECTRA> pi = 4*atan(1)