# C Programming - Floating Point Issues - Discussion

Discussion Forum : Floating Point Issues - Find Output of Program (Q.No. 4)

4.

What will be the output of the program?

```
#include<stdio.h>
#include<math.h>
int main()
{
printf("%f\n", sqrt(36.0));
return 0;
}
```

Answer: Option

Explanation:

*printf("%f\n", sqrt(36.0));* It prints the square root of 36 in the float format(i.e 6.000000).

**Declaration Syntax**: *double sqrt(double x)* calculates and return the positive square root of the given number.

Discussion:

15 comments Page 1 of 2.
Janavi said:
5 years ago

Generally, the float value will display like six digits after the decimal point so, the output of the above program will be 6.000000 because of √(36.0) =6.000000.

So whenever we have to calculate the sq.root of decimal digits there are always ans is value .000000.

So whenever we have to calculate the sq.root of decimal digits there are always ans is value .000000.

D SURESH said:
1 decade ago

Generally float value will display like six digits after the decimal point so, output of the above program will be 6.000000 because sqrt (36.0) =6.000000.

Ishi said:
9 years ago

@D Suresh.

As you said float value display six value after decimal than, what about double and long double?

As you said float value display six value after decimal than, what about double and long double?

Deepak said:
8 years ago

If 36.0 is double then it should give 14 digits of precision then answer would be 6.00000000000000.

Gaurav said:
1 decade ago

But sir, float has only 4 terms after decimal place and there is 6 six terms after decimal?

Sankari said:
1 decade ago

36.0 is double, how it is double can anyone explain me please?

What is double and float?

What is double and float?

Yogesh tiwari said:
1 decade ago

Sir I am not satisfied with your answer, it turbo c it create error please explain.

Shailesh said:
1 decade ago

Because.

36.0 is double.

6.0 is float.

So the answer 6.0 is not possible.

36.0 is double.

6.0 is float.

So the answer 6.0 is not possible.

Ramkrishna said:
1 decade ago

6.0 is allso float right? Why can't I become a answer please explain?

Rajaasekaran said:
1 decade ago

Can you give me example program for square root of double ?

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