tan^2*(45+x/2)

tan^2*(45+x/2)

[Rik]

You forgot to ask a question.

[bruk tgsetu]

how can in write on matlab

Answer 1

[Rik]

You probably mean either of these:

% if x is in radians:
tan(45+x/2).^2

% if x is in degrees:
tand(45+x/2).^2

If you don't, please explain in a comment to your question what you mean mathematically.

[Steven Lord]

That 45 in the expression makes me suspect bruk tgsetu is working in degrees, in which case they should use the degree-based tangent function tand instead of the radian-based tan.

[Rik]

Good point. I've edited my answer to include that point.