Hello,

I am in an entry level C++ course. We have a homework problem that requires us to prompt the user to enter five sets of three numbers (type double) and store the numbers in a 5 x 3 array called Data[5][3]. Then, pass the matrix Data[5 ][3 ] from main ( ) to a function float mean (const int Data [ ][ ], int, int ) that receives the array Data [5 ][3 ] and its dimensions as arguments to find the row and column mean of matrix Data and prints the results in function main ( ). Here is a copy of my syntax:

#include <iostream>
#include <iomanip>
using namespace std;


float mean(const double, int, int);


int main()
{
const int row=2, col=3;
double data[row][col];
float avgrows[5];


//Entering values for the matrix
cout<<"Enter two sets of three number."<<endl;

for(int i=0; i<row; i++)
{
for(int j=0; j<col; j++)
{
cout<<"Enter row "<<i+1<<": ";
cin>>data[i][0]>>data[i][1]<<data[i][2];
}
}

//Stores row means into an array
for(i=0; i<row; i++ )
{
avgrows[i]=mean(data, row, col);
}


//Print array
for(int x=0; x<5; x++)
{
cout<<avgrows[x]<<" ";
}

return 0;
}





float mean (const double data, int rows, int columns)
{
float average, sum=0;
for(int i=0; i<rows; i++)
{
for(int j=0; j<columns; j++)
{
sum+=data[i][j];
}
average=sum/columns;
return average;
}
}



Once I compile this cpp file, I get 4 errors, they are:

--------------------Configuration: matrix passing - Win32 Debug--------------------
Compiling...
matrix passing.cpp
1.) error C2676: binary '<<' : 'class std::basic_istream<char,struct std::char_traits<char> >' does not define this operator or a conversion to a type acceptable to the predefined operator

2.)error C2664: 'mean' : cannot convert parameter 1 from 'double [2][3]' to 'const double' There is no context in which this conversion is possible

3.) error C2109: subscript requires array or pointer type

4.) error C2109: subscript requires array or pointer type
Error executing cl.exe.

matrix passing.exe - 4 error(s), 0 warning(s)

I can't figure what the error mean, nor can I figure out what else to do. I've been racking my brain the last couple of days. If some one could shine some light on this matter, I would greatly appreciate it. I've also attached a copy of my cpp file.

Thank you.