i want to write c code as a calculater. $$ want to calculate $+$ : Addition

$-$ : Subtraction

$*$ : Multiplication

$/$ : Division

s : Sine $($trigonometric$)$

c : Cosine $($trigonometric$)$

t : Tangent $($trigonometric$)$

l : Logarithm

q : Square root

$^$ : Exponentiation