I want to get a general formula for an expression, so instead of numbers like 5 or Pi I want to insert variables into an expression. But the functions involved check
NumericQ on the arguments and do not evaluate for a symbolic variable. Can I force Mathematica to return
NumericQ as True for a set of variables?
NumericQ[a]=True- no error but does not work
The same but with
Unprotect[NumericQ]- no effect
$Assumptions=a \[Element] Reals- no effect
What else should I try?