Trigonometric functions take numeric arguments and produce numeric results.
(number)
¶(number)
¶Takes the arccosine, in radians, of number. Results in system-missing if number is not between -1 and 1 inclusive. This function is a PSPP extension.
(number)
¶(number)
¶Takes the arcsine, in radians, of number. Results in system-missing if number is not between -1 and 1 inclusive.
(angle)
¶Takes the cosine of angle which should be in radians.
(angle)
¶Takes the sine of angle which should be in radians.
(angle)
¶Takes the tangent of angle which should be in radians. Results in system-missing at values of angle that are too close to odd multiples of \pi/2. Portability: none.