Secret Recipes of the Python Ninja

How to do it...

1. The ceil(x) function returns the smallest integer >= x. Normal mathematical rounding is not used, so 12.3 will be rounded up to 13, rather than rounding up starting at 12.5; any value greater than x.0 will be rounded up to the next value, as shown in the following screenshot:

2. The copysign(x, y) function returns a float value with an absolute value of x but with the sign of y. If the OS supports signed zeros, copysign(1.0, -0.0) gives the value -1.0, as shown in the following screenshot:

3. The  fabs(x) function returns the ...