Hey, all,

Very new to C++ programming. I'm attempting to code a function that takes the inner product of two vectors and it's giving me the error message: subscript requires array or pointer type. Here is my code:

The error message in terminal appears twice and refers to line 53:Code:#include <iostream>#include <string> using namespace std; double innerProduct(double vectorA, double vectorB, int dim); int main(){ int dim; int i; double vectorA[100]; double vectorB[100]; cout << "What is the dimension of the two vectors: (Enter an integer)\n"; cin >> dim; while(dim <= 0 || dim > 100){ if(dim <= 0){ cout << "Enter an integer greater than 0.\n"; cin >> dim; } else{ cout << "Enter an integer less than or equal to 100.\n"; cin >> dim; } cout << "Enter " << dim << " numbers for vector A.\n"; for(i=0; i<dim; i=i+1) cin >> vectorA[i]; cout << "Enter " << dim << " numbers for vector B.\n"; for(i=0; i<dim; i=i+1) cin >> vectorB[i]; cout << "The inner product of Vectors A and B of dimension " << dim; cout << " is " << innerProduct(vectorA, vectorB, dim) << "\n"; } return 0; } double innerProduct(double vectorA, double vectorB, int dim){ double ip; int i; double cp[100]; ip=0; for(i=0; i<dim; i=i+1) cp[i]=vectorA[i]*vectorB[i]; for(i=0; i<dim; i=i+1) ip=ip+cp[i]; return ip; }

cp[i]=vectorA[i]*vectorB[i];

What's wrong? Thanks in advance!