C program for plotting of two functions

In this tutorial, we are going to write a C Program for plotting of two functions (y1=exp(-ax); y2=exp(-ax²/2)) C Programming with practical program code and step-by-step full complete explanation.

C program for plotting of two functions.

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

void main()
{
    int i;
    float a,x,y1,y2;
    a=0.4;
    printf("             Y------>       ");
    printf("0----------------------------");
    
    for(x=0;x<5;x=x+0.25)
    y1=(int)(50*exp(-a*x)+0.25);
    y2=(int)(50*exp(-a*x*x/2)+0.5);

    if(y1==2)
    {
        if(x==2.5)
            printf("X  |");
        else
            printf("|");
        for(i=1;i<=y1-1;++i)
            pintf("");
        printf("#");
        continue;
    }

    if(y1>y2)
    {
        if(x==2.5)
            printf("X |");
        else
            printf(" |");
        for(i=1;i<y2-1;++i)
            printf("");
        printf("*");

        for(i=1;i<=(y1-y2-1);++i)
            printf("_");
        printf("0");
        continue;
    }
    if(x==2.5)
        printf("X|");
    else
    {
        printf(" |");
    for(i=1;i<=y1-1;++i)
        printf("");
    printf("0");

    for(i=1;i<=(y2-y1-1);++i)
        printf("_");
    printf("*");
    }
}

Output

 
0--------------------------------------------------
|                                      #
|                                    0...*
|                                 0...*
|                                0...*
|                            0...*
|                           0...*
|                        0...*
|                   0...*
|                 0...*
|               0...*
|                #
|

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