Incorrect values of sin and cos

From: anshu khare (anshukhare1998_at_[hidden])
Date: 2020-01-16 15:08:35

cos(3*pi(cpp_bin_float_50>()/2)) does not give correct value.
Only cos(pi(cpp_bin_float_50>()/2)) gives correct value.
All odd multiples of cos(pi/2) do not give correct value.

The issue with sin() as well.

Anshu