Turbo C gives Output as 0.000000

Question

I have set the correct directory paths for Turbo C. But yet it gives the output as 0.000000

Following is the program:

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

void main() {
    int n;
    float r, si, ci, p;
    clrscr();
    printf("enter principle amount\n");
    scanf("%f", &p);
    printf("enter rate of interest\n");
    scanf("%d", &r);
    printf("enter number of years\n");
    scanf("%f", &n);
    si = p * n * r / 100;
    ci = p * (pow((1 + (r / 100)), n) - 1);
    printf("simple interest=%f\n", si);
    printf("compound interest=%f", ci);
    getch();
}

It is supposed to give numbers instead of 0.000000

Any help?

Totally off-topic but do you have the option of using a more modern compiler? If you do, I strongly urge you to. — StoryTeller - Unslander Monica, Jan 27 '19 at 15:10
Why are you reading in rate of interest `rate` as `%d` and number of years `n` as `%f`? — Sami Hult, Jan 27 '19 at 15:11
`scanf("%d",&r);` no; `scanf("%f",&n);` also no. Turn on your compiler warnings, and mind them. — pmg, Jan 27 '19 at 15:11
Why are you using Turbo C? If you google it, you'll get: Turbo C is a discontinued Integrated Development Environment and compiler for the C programming language from Borland. — machine_1, Jan 27 '19 at 15:12
Always check scanf return value to catch invalid input. Check docs to see what it means. — hyde, Jan 27 '19 at 15:13
You can find a list of compilers here https://en.wikipedia.org/wiki/List_of_compilers#C_compilers I'd recommend Clang or gcc. — klutt, Jan 27 '19 at 15:25
I presume you are running Windows? You could try Visual Studio 2017 community edition. It's free. It needs a reasonably modern pc to run it but tbh if you have windows 10 it'll be OK. — Neil, Jan 27 '19 at 17:32

gsamaras · Accepted Answer · 2019-01-27T15:30:28.813

1

Change:

scanf("%f",&n);

to:

scanf("%d",&n);

since n is an integer, not a float, as suggested in the comments already.

For r, which is of type float, you should use scanf("%f",&r);.

PS: Consider using a modern compiler, such as GCC.

edited Jan 27 '19 at 15:30

answered Jan 27 '19 at 15:13

gsamaras

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Can you please suggest me modern compiler? Borland ? – Paramasivan Jan 27 '19 at 15:17
1

@gsamaras You seem to have mixed up the two `scanf` calls – for `r` and for `n`. Both are mistaken in the OP, but your first snippet is a hybrid of them (which is actually correct for `r`). – Ruslan Jan 27 '19 at 15:24
1

Thank you ALL ; it works now ; I will use modern compiler like GCC – Paramasivan Jan 27 '19 at 15:42
@Paramasivan Good decision. – machine_1 Jan 27 '19 at 15:44

Turbo C gives Output as 0.000000

1 Answers1