Elementary Mathematical Functions
MATLAB has a number of built-in functions, such as square root, sine, cosine, exponential, etc, functions. The following table gives a list of some commonly used functions. Later you will also write your own functions.
| round(x) | Rounds to the nearest integer |
| floor(x) | Rounds down to nearest integer |
| ceil(x) | Rounds up to nearest integer |
| rem(y,x) | Remainder after dividing by (eg remainder of 17/3 is 2) |
| sign(x) | Returns -1 if ; returns 0 if ; returns 1 if . |
| rand or rand(1) | Generates a random number between 0 and 1 |
| exp(x) | Exponential function |
| log(x) | Natural logarithm function, (where ) |
| sqrt(x) | Square root function, |
| abs(x) | Absolute value function, |
| sin(x) | sine function |
| cos(x) | cos function |
| tan(x) | tan function |
