Write a user defined function to implement the following mathematical function :

Write a user defined function to implement the following mathematical function : please note that x is angle in degrees.

f (x) = cos (x) if 0 < x < 90

f(x)= sin(x) if 90 < x < 180

f(x)=tan(x) otherwise

Answer 1

[David Hill]

function y = f(x)
 if x>0&&x<90
    y=cosd(x);
 elseif x>90&&x<180
    y=sind(x);
 else
    y=tand(x);
 end