


MOD(x,y) calculates Modules Y from X
z = x - y * floor(x/y);
e = eps * floor(x/y);
[z,e] = MOD(X,Y)
z is the modulus of Y for X
e is the error tolerance, for checking the accuracy
z(e > abs(y)) is not defined
z has always the same sign than y
see also: REM