declare (x, xd, y, v) float;

x = 0.5; xd = 45;

/* angle in radians: */
v = sin(x); y = asin(v); put skip list (y);
v = cos(x); y = acos(v); put skip list (y);
v = tan(x); y = atan(v); put skip list (y);

/* angle in degrees: */
v = sind(xd); put skip list (v);
v = cosd(xd); put skip list (v);
v = tand(xd); y = atand(v); put skip list (y);

/* hyperbolic functions: */
v = sinh(x); put skip list (v);
v = cosh(x); put skip list (v);
v = tanh(x); y = atanh(v); put skip list (y);