Hello everybody c:

if I have a number like the example below will visual studio 5 pro and the <math> or <cmath> library allow it to work and if I code it correctly (my function) will it deliver radians like 0.->15 decimal places long?
Example#: 463526353645364747845758748753629578458295748943889
using atan or tan or even * or /?

Thanks so much, I appreciate any advice.

PCB