Newton Backward Difference in C Programming
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#include<stdio.h>
#include<stdlib.h>
int main()
{
float x[20], y[20][20];
int i,j, n;
/* Input Section */
printf("Enter number of data?\n");
scanf("%d", &n);
printf("Enter data:\n");
for(i = 0; i < n ; i++)
{
printf("x[%d]=", i);
scanf("%f", &x[i]);
printf("y[%d]=", i);
scanf("%f", &y[i][0]);
}
/* Generating Backward Difference Table */
for(i = 1; i < n; i++)
{
for(j = n-1; j > i-1; j--)
{
y[j][i] = y[j][i-1] - y[j-1][i-1];
}
}
/* Displaying Backward Difference Table */
printf("\nBACKWARD DIFFERENCE TABLE\n\n");
for(i = 0; i < n; i++)
{
printf("%0.2f", x[i]);
for(j = 0; j <= i ; j++)
{
printf("\t%0.2f", y[i][j]);
}
printf("\n");
}
return 0;
}
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