Notes - Math Library

Unit #2 - Notes - Math Library

Mathematical Library Functions:

All of the higher level languages have rich libraries which contain many of the functions used in calculus. Examples of those can be found in your book.
In particular we list the following:

The exponential function: exp(x) for e^x
The power function: pow(x,n) for xⁿ
The trigonometric functions: sin(x), cos(x), tan(x), asin(x), …..NOTE: You must use radians not degrees
The absolute value function for integer arguments: abs(number)
The absolute value function for float or double arguments: fabs(decimal_number)
The square root function: xsqrt(x) , same result aspow(x,0.5)
The logarithmic function: log(x) for natural logarithm
The logarithmic function: log10(x) for logarithm of base 10

All of these functions are included by the <math.h> header
We also suggest that you check the help section of your software. For example in Visual C++ from HELP – Index we can find the following:

And if we select math routines and we click display we obtain a list of the functions. Clicking on a function generates a full explanation for that particular function. For example: