i keep on getting an error and its driving me insane

[dvsumosize]

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
    double k,A,B,W,NumberOfSlices,Width,y,Area,Sum;

    NumberOfSlices = 1200000.0;
    A              = 10.0;
    B              = 6.0;
    Width          = A / NumberOfSlices;
    k              = 0.0;
    Sum            = 0.0;
    
    while ( k < NumberOfSlices )
    {
        W = ( Width * ( k + 1 ));
        y = ( B / A ) * sqrt( A * A - W * W ) ;
        Area = y * Width;
        Sum = Sum + Area;
        k = k + 1;
    }
    printf("\n\t the area of the ellipse is %10.3f",Sum * 4);

    printf("\n\n");
    system("pause");
    system("cls");

    A              = 4.0;
    k              = 0.0;
    NumberOfSlices = 10.0;
    Sum            = 0.0;
    Width          = A / NumberOfSlices;

    While ( k < NumberOfSlices )
    {
        W = ( Width * ( k + 1 ));
        y = W * W;
        Area = Width * y;
        Sum = Sum + Area;
        k = k + 1;
    }
    printf("\n\t the area of a parabola at x = 4 is %10.3f",Sum);

    printf("\n\n\n");
}

it keeps on saying im missing a ; before the { that follows directly after the second while command, but i dont see how that is possible. it never needed one there before. i put one there just ot humor it and it gives me an error on the while. so any help would be appreciated

[tabstop]

Spot the difference:

While

while

[RockyMarrone]

This code is having error dude

    While ( k < NumberOfSlices ) // this line c/c++ have while not While
    {
        W = ( Width * ( k + 1 ));
        y = W * W;
        Area = Width * y;
        Sum = Sum + Area;
        k = k + 1;
    }

[dvsumosize]

ty vm