# Math functions in C program

 abs() Absolute value of input number ceil() Highest integer lower than the input data floor() Highest integer lower than the input data hypot() hypotenuse of two input numbers log() log value with base e of a number log10() log value with base 10 of a number pow() x to the power y of two input numbers fmod() remainder after division of numbers round() Rounding to nearest integer sqrt() Square root of a given number trunc() Truncation of number sin(), cos() , tan() sin(), cos() & tan() value sinh(), cosh() , tanh() sinh(), cosh() & tanh() value

### Practice Questions

1. Take one input integer ( both positive and negative ) and print the absolute value of it.
2. Take one float input and display the absolute value of it.
3. Take one float input value and display the ceil() value of the same.
4. Find out the ceil() value and floor() value for the following input numbers
4.6,4.5.4,3,-2.3-2.4,-2.5,-2.6,4.0, 4.9
Note : All the above functions takes one input.
5. Print the output of hypot(x,y) where x, y are integer variables.
6. Print the output of hypotf(x,y) where x, y are float variables.
7. Print the output of hypotl(x,y) where x, y are long variables.
8. Print the value of log(x) where x is an integer or a float or a long variable.
9. Print the value of log10(x) where x is an integer or a float or a long variable.
10. Print the value of pow(x,y) where x and y are integer or float or a long variables.
11. Declare float variables with these values
3.456,3.567,4.678, -2.456,-2.567,-2.678
Use math function round() and check the outputs .
12. What is the sqrt(625) output
13. What is the output of trunc(13.123456)
14. Declare value of PI as 3.1141592 , then find out the value of sin(PI/2), cos(PI/2), tan(PI/2)
15. Find the similar values for PI/3, PI/4
16. In place of sin() use shinh() and check the above values.

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