Dynamic Allocation of two-dimensional array C++

Question

Hi I\'m pretty new to C++ and I need to dynamicacally allocate two-dimensional array. No error but in runtime when I set a order and first row then I get a runtime error: \"

Answer 1

Replace

double ** arr = new double *[order];
for(int i = 0;i < order; i++){
        *arr = new double[order+1];

with

double ** arr = new double *[order];
for(int i = 0;i < order; i++){
        arr[i] = new double[order+1];

In your present code you initialize only first array element.