How do I create an array, dynamic in one dimension yet static in others? C

Question

Here is my current attempt however when I try to assign a double to one element I am told that the "subscripted value is neither array nor pointer nor vector". Can anyone point me in the right direction (pun intended).

int i;
double x[2];
for(i=0;i<2;i++){
double *x[i];
x[i] = (double*) malloc(10000*sizeof(double));
}

Answer 1

Make a static array of pointers:

int i;
double *x[2];
for(i=0;i<2;i++){
    x[i] = malloc(10000*sizeof(double));
}

And proceed as you are (without casting the result of malloc).

Answer 2

Write the following way

int i;
double *x[2];
for(i=0;i<2;i++){
    x[i] = (double*) malloc(10000*sizeof(double));
}

Or you could even write provided that the array itself has automatic storage duration.

double *x[2] = { malloc(10000*sizeof(double)), malloc(10000*sizeof(double)) };