You will write a program in C that multiplies a matrix by a vector, using MATLAB to check the results. Create a program in MATLAB to solve the Topic 5 "File I/O" assignment. Use any built-in MATLAB functions of your choice. Some might require you to change your input files slightly; if so, document what you did and explain why. Compare and contrast the C and MATLAB versions of your code.
C++ Code :
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,j,r,c,n;
r=2,c=4,n=4;
int mat[2][4] = {5,2,3,1 ,7,6,3,8};
int vec[4]={1,9,8,3};
printf("Matrix :\n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
printf("%d ",mat[i][j]);
printf("\n");
}
printf("Vector :\n");
for(i=0;i<n;i++)
{
printf("%d\n",vec[i]);
}
//since after multiplication final result will
be
//column vector of 2 elements
int final[2][1];
int sum=0;
//calculating the matrix multiplication
for(i =0;i<r;i++)
{
sum=0;
for(j=0;j<c;j++)
{
sum = sum +
mat[i][j]*vec[j];
}
final[i][0] = sum;
}
printf("Result after multiplication is :\n");
for(i=0;i<r;i++)
printf("%d\n",final[i][0]);
return 0;
}
Matlab Code:
mat = [5 2 3 1;7 6 3 8];
vec = [1;9;8;3];
mat*vec
Output SS:
C++
Matlab:
You will write a program in C that multiplies a matrix by a vector, using MATLAB...
You will write a program in C that multiplies a matrix by a vector, using MATLAB to check the results. Create a program in MATLAB to solve the Topic 5 "File I/O" assignment. Use any built-in MATLAB functions of your choice. Some might require you to change your input files slightly; if so, document what you did and explain why. Compare and contrast the C and MATLAB versions of your code. works in matlab
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