Page 180 - ARM Based Microcontroller Projects Using MBED

/**************************************************************

VOLUME OF A CYLINDER
====================
This program calculates and displays the volume of a cylinder.
The user enters the radius and height as floating point values

Author: Dogan Ibrahim
Date : August 2018
File : Cylinder
***************************************************************/
#include "mbed.h"
Serial MyPC(USBTX, USBRX);
//
// Clear the screen
//
void clrscr()
{
char clrscr[] = {0x1B, '[', '2' , 'J',0};
MyPC.printf(clrscr);
}
//
// Home the cursor
//
void homescr()
{
char homescr[] = {0x1B, '[' , 'H' , 0};
MyPC.printf(homescr);
}

int main()
{
float radius, height, volume;
float pi = 3.14159;

clrscr(); // Clear the screen
homescr(); // Hoem teh cursor
MyPC.printf("Volume of a Cylinder"); // Display heading
MyPC.printf("\n\r==================");
MyPC.printf("");
MyPC.printf("\n\rEnter the radius: ");
MyPC.scanf("%f", &radius); // Read the radius
MyPC.printf("\n\rEnter the height: ");
MyPC.scanf("%f", &height); // Read height
volume = pi * radius * radius * height; // Calculate volume
MyPC.printf("\n\rVolume = %f\n\r", volume); // Display volume
}
FIG. 8.26 Program listing.