This would be my last reply i gtg somewhere.Quote:
Originally Posted by rhymewithnothin
peace :)
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This would be my last reply i gtg somewhere.Quote:
Originally Posted by rhymewithnothin
peace :)
That still won't make 1/2 evaluate to 0.5. See my above post.Quote:
Originally Posted by jcarouth
Thank you very much. When I compile and link now all the error messages are gone. Thanks again. I'll check back if I need more help.
OK all the erros are gone, but when I try to run the I/O, it will ask me what shape I want to find the area of, and when I type what I want, it just ends the program. Here is the completed code if someone wants to put it in their compiler and try to figure it out...
Thanks again.Code:/*This program will compute the area of a rectangle, */
/*triangle, circle, ellipse, and sphere. */
#include <stdio.h>
#include <math.h>
#define PI 3.141593
int main(void)
{
/* Declare first variable. */
char shape, rectangle, triangle, circle, ellipse, sphere;
/* Determine which shape to find the area of */
printf("Find the area of a rectangle, triangle, circle, ellipse, or sphere?");
scanf("%c",&shape);
if (shape == rectangle){
/* Declare set of variables for this shape */
float lengthRect, widthRect, areaRect;
printf("Enter the length. \n");
scanf("%lf",&lengthRect);
printf("Enter the width. \n");
scanf("%lf",&widthRect);
/* Compute the area */
areaRect = (lengthRect*widthRect);
printf("The area of the rectangle is "
"%5.2lf \n",areaRect);
}
else if (shape == triangle){
/* Declare set of variables for this shape */
float baseTri, heightTri, areaTri;
printf("Enter the base. \n");
scanf("%lf",&baseTri);
printf("Enter the height. \n");
scanf("%lf",&heightTri);
/* Compute the area */
areaTri = (.5)*(baseTri*heightTri);
printf("The area of the triangle is "
"%5.2lf \n",areaTri);
}
else if (shape == circle){
/* Declare set of variables for this shape */
float radiusCirc, areaCirc;
printf("Enter the radius. \n");
scanf("%lf",&radiusCirc);
/* Compute the area */
areaCirc = PI*(radiusCirc*radiusCirc);
printf("The area of the circle is "
"%5.2lf \n",areaCirc);
}
else if (shape == ellipse){
/* Declare set of variables for this shape */
float semiaxisA, semiaxisB, areaEllipse;
printf("Enter the length of semiaxisA. \n");
scanf("%lf",&semiaxisA);
printf("Enter the length of semiaxisB. \n");
scanf("%lf",&semiaxisB);
/* Compute the area */
areaEllipse = (PI*semiaxisA*semiaxisB);
printf("The area of the ellipse is "
"%5.2lf \n",areaEllipse);
}
else if (shape == sphere){
/* Declare set of variables for this shape */
float radiusSphere, areaSphere;
printf("Enter the length of the radius. \n");
scanf("%lf",&radiusSphere);
/* Compute the area */
areaSphere = (4*PI*radiusSphere*radiusSphere);
printf("The surface area of the sphere is "
"%5.2lf \n",areaSphere);
}
return 0;
}
Quote:
Originally Posted by cwr
meant to be ((double)(1)/2)....sorry
I changed all the comparisons to characters since you are comparing against a character.Code:/*This program will compute the area of a rectangle, */
/*triangle, circle, ellipse, and sphere. */
#include <stdio.h>
#include <math.h>
#define PI 3.141593
int main(void)
{
/* Declare first variable. */
char shape;
//char shape, rectangle, triangle, circle, ellipse, sphere;
/* Determine which shape to find the area of */
printf("Find the area of a rectangle, triangle, circle, ellipse, or sphere?");
scanf("%c",&shape);
if (shape == 'r'){
/* Declare set of variables for this shape */
float lengthRect, widthRect, areaRect;
printf("Enter the length. \n");
scanf("%lf",&lengthRect);
printf("Enter the width. \n");
scanf("%lf",&widthRect);
/* Compute the area */
areaRect = (lengthRect*widthRect);
printf("The area of the rectangle is "
"%5.2lf \n",areaRect);
}
else if (shape == 't'){
/* Declare set of variables for this shape */
float baseTri, heightTri, areaTri;
printf("Enter the base. \n");
scanf("%lf",&baseTri);
printf("Enter the height. \n");
scanf("%lf",&heightTri);
/* Compute the area */
areaTri = (.5)*(baseTri*heightTri);
printf("The area of the triangle is "
"%5.2lf \n",areaTri);
}
else if (shape == 'c'){
/* Declare set of variables for this shape */
float radiusCirc, areaCirc;
printf("Enter the radius. \n");
scanf("%lf",&radiusCirc);
/* Compute the area */
areaCirc = PI*(radiusCirc*radiusCirc);
printf("The area of the circle is "
"%5.2lf \n",areaCirc);
}
else if (shape == 'e'){
/* Declare set of variables for this shape */
float semiaxisA, semiaxisB, areaEllipse;
printf("Enter the length of semiaxisA. \n");
scanf("%lf",&semiaxisA);
printf("Enter the length of semiaxisB. \n");
scanf("%lf",&semiaxisB);
/* Compute the area */
areaEllipse = (PI*semiaxisA*semiaxisB);
printf("The area of the ellipse is "
"%5.2lf \n",areaEllipse);
}
else if (shape == 's'){
/* Declare set of variables for this shape */
float radiusSphere, areaSphere;
printf("Enter the length of the radius. \n");
scanf("%lf",&radiusSphere);
/* Compute the area */
areaSphere = (4*PI*radiusSphere*radiusSphere);
printf("The surface area of the sphere is "
"%5.2lf \n",areaSphere);
}
return 0;
}
The user needs to enter an r for rectangle, t for triangle, et cetera. There are ways to implement using the entire word, ie rectangle. It runs right now. I only tested that it will accept r for rectangle, and it appears that you need to check your computational algorithm as it gave me an area of 0.00 for a 2 by 3 rectangle.
Can do. I'll see what I can do. Thanks.