I'm trying to solve the following equation in the solver application:

To/T=1+(γ-1)/2*M^2

I previously created the following variables: "To", "γ" ("T" and "M" are already built in the calculator from factory)

If I input values for "T", "γ" and "M" and try to solve for "To", I get the following message:

"Constant? The value of the equation is the same at every point sampled."

I noticed that, If I replace "To" for a different variable, say "P", the solver obtains the correct answer.

What am I doing wrong?

Please help!