Lab6 - Tao Lin Lab#6 EE140/Lab#6 Question#1 Tao Lin/A...

Tao Lin
Lab#6
EE140
//----------------------------------------------------------------
//Lab#6 Question#1 Tao Lin
//A program that ask users for velocity and angle. The program calculate
//time, distance, and height using functions and display the results
//on the screen.
//------------------------------------------------------------------
#include <stdio.h>
#include <math.h>
double const pi=3.1415926,g=9.8;
//function time
double time( double velocity, double angle)
{
double t;
double radian=angle/180*pi; //covert degree into radian
t=2*velocity*sin(radian)/g;
return t;
}
//function distance
double distance( double velocity, double angle)
{
double d;
double radian=angle/180*pi;
d=velocity*velocity*sin(2*radian)/g;
return d;
}
//function height
double height( double velocity, double angle)
{
double h;
double radian=angle/180*pi;
h=velocity*velocity*sin(radian)/g;
return h;
}
int main( void )
{
double velocity, angle,Time,Distance,Height;
printf( "Enter velocity: " );
scanf( "%lf" ,&velocity);
printf( "Enter angle: " );
scanf( "%lf" ,&angle);
//call functions
Time=time(velocity, angle);
Distance=distance(velocity,angle);
Height=height(velocity,angle);

printf( "The time is: %f\nThe distance is: %f\nThe height is:
%f\n\n" ,Time,Distance,Height);
return 0;
}