If sin(h) has a known value, how can I find h with matlab?

In a function I am trying to write, sin(h) is dependant on input variables when calling the function. Then however, function develops dependant on value of h. How can I find the value of h for if statements later in text?

Essentially:

sin(h)=max(0,sin(lat)*sin(decl)+cos(lat)*cos(decl)*cos(w_d*(t+43200)));

if h <= 0
Insd=0
else
Insd=S*(e^(-C_ext))*sin_h*(1-0.71nc);
end

Answer 1

[madhan ravi]

y = sin(x)

asin(y) %gives value of x

[Mikolaj Jankowski]

Thank you :D

[madhan ravi]

Nie ma za co XD