ex4.1

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

float fun(float A, float B, float C, float beta, float x);

int main()
{

    float A,B,C,deltax,beta,e;
    float x,value;

    printf("Podaj A,B,C,beta: \n");
    do
        scanf("%f%f%f%f",&A,&B,&C,&beta);
    while(A<=0 || B<=0 || C<=0 || beta<=0);

    printf("Podaj deltax,e: \n");
    do
        scanf("%f%f",&deltax,&e);
    while(deltax<=0);
    printf("\n");

    do{
        x += deltax;
        value = fun(A,B,C,beta,x);
        getchar();
        printf(" %0.10f     -     %0.10f \n", x,value);
    }while(value>e);

    printf("\n");
    return 0;
}

float fun(float A, float B, float C, float beta, float x){
    return ( (A*pow(M_E,-x*beta)) / ((B*x*x)+C) );
}