Problem with the solve function

I am trying to solve this equation:

nux= ((gam+1)/(gam-1))^(1/2) * atan(((gam-1)/(gam+1))*(Mx^2-1))^(1/2)-atan(Mx^2-1)^(1/2);

for Mx, the rest of the variable are known (that is nux and gam).

My attempt to solve this question using the solve function (according to http://www.mathworks.com/help/symbolic/solve.html this link) didn't work, this is how i wrote it:

Mx=solve(nux-((gam+1)/(gam-1))^(1/2) * atan(((gam-1)/(gam+1))*(Mx^2-1))^(1/2)-atan(Mx^2-1)^(1/2)==0, Mx, "Real");

The error that i kept getting was:

"The input character is not valid in MATLAB statements or expressions."

Please let me know what i am doing wrong, and help me solve this equation.

Thank you.

Answer 1

[Sai]

 Mx = solve(nux-((gam+1)/(gam-1))^(1/2) * atan(((gam-1)/(gam+1))*(Mx^2-1))^(1/2)-atan(Mx^2-1)^(1/2)==0, Mx, 'Real');

is this is what u are looking for???

[Alex Mannings]

Thanks, it should be 'Real', but now i get this error: " Cannot find an exact (case-sensitive) match for 'Mx'

The closest match is: mx in C:\Program Files\MATLAB\R2012a\toolbox\robust\rctobsolete\mutools\commands\mx.m

"