round up
y=ceil(x)
a real or complex matrix
integer value matrix (or complex matrix with integer real and imaginary part)
ceil(x) returns an integer or complex matrix made of rounded up elements.
ceil(x)
ceil([1.3 1.5 1.7 2.5 3.7]) // Notice the result for x negative ceil([-1.3 -1.5 -1.7 -2.5 -3.7]) ceil([2.2+%i*23, %pi*%i, -%i ])