Javascript itself provides a comprehensive set of math functions through the Math library. In addition, the following math functions are available through JSCAD.

sin(a);                   // a = 0..360
cos(a);                   //     ''
asin(a);                  // a = 0..1, returns 0..360
acos(a);                  //       ''
tan(a);                   // a = 0..360
atan(a);                  // a = 0..1, returns 0..360
atan2(a,b);               // returns 0..360
ceil(a);
floor(a);
abs(a);
min(a,b);
max(a,b);
rands(min,max,vn,seed);   // returns random vectors of vn dimension, seed not yet implemented
log(a);
lookup(ix,v);             // ix = index, e.g. v = [ [0,100], [10,10], [20,200] ] whereas v[x][0] = index, v[x][1] = value
                          //    return will be linear interpolated (e.g. lookup(5,[ [0,100], [10,10], [20,200] ]) == 45
 
pow(a,b);
sign(a);                  // -1, 0 or 1
sqrt(a);
round(a);