FullSimplify::timc
TimeConstrained::timc
Simplify::timc
Refine::timc
PiecewiseExpand::timc
An error occurs because None is not a valid value for the TimeConstraint option:
Simplify[Cos[37] ^ 2 - Sin[37] ^ 2, TimeConstraint -> None]This shows a valid value for the TimeConstraint option in Simplify:
Simplify[Cos[37] ^ 2 - Sin[37] ^ 2, TimeConstraint -> 1]