if I write in matlab
cos(pi/4)
I get this form:
0.7071
when I'd prefer getting it actual value of (2)^(1/2)/2 to write formulas more clearly. is there a way to do what I ask?
how can I obtain exact values of sin and cos in matlab for angles like pi/4?
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You can you use the Symbolic Math toolbox that comes with many installs of Matlab:
which returns