Thread: passing by reference

i have the following program and this is the error i am getting
illegal, right operand has type 'double *
how do i fix it

Code:

#include<stdlib.h>
#include<stdio.h>
void cube(double* pVariable);
main(){
	
	double variable=3.43;
	int* pVariable;

	printf("Value of variable is &#37;.2lf\n",variable);
	printf("Address of variable is %p\n",&variable);
	
	pVariable=&variable;
	cube(&variable);
	
	system("Pause");
}

void cube(double *pVariable){
	printf("The number %.2lf\n",pVariable);
	pVariable=*pVariable*pVariable*pVariable;
}