function _sin(x) {
	return(sin(x))
}

function _asin(x) {
	return(asin(x))
}

function _cos(x) {
	return(cos(x))
}

function _acos(x) {
	return(acos(x))
}

function cube(x) {
	return(x*x*x)
}

function cuberoot(x) {
	return(sign(x)*abs(x)^(1/3))
}

function compose(f,g,x) {
	return((*f)((*g)(x)))
}

a=&_sin(),&_cos(),&cube()
b=&_asin(),&_acos(),&cuberoot()

for(i=1;i<=length(a);i++) {
	printf("%10.5f\n",compose(a[i],b[i],0.5))
}