real function ASIND( x) real x c c This FORTRAN callable function returns the ARCSINE c of a specified value as an angle in degrees. c if (ABS( x) .lt. 1.0) go to 100 ASIND = x * 90.0 return c c Use trigonometric identity to calculate ARCSINE of X. c Then convert radians to degrees. c 100 radang = ATAN( x / SQRT( 1.0-x**2)) ASIND = radang * 57.29577951 return c end