| MATLAB Function Reference | |
Elementary Matrices and Matrix Manipulation
| |
| Elementary Matrices and Arrays | |
| blkdiag | Construct a block diagonal matrix from input arguments |
| eye | Identity matrix |
| linspace | Generate linearly spaced vectors |
| logspace | Generate logarithmically spaced vectors |
| numel | Number of elements in a matrix or cell array |
| ones | Create an array of all ones |
| rand | Uniformly distributed random numbers and arrays |
| randn | Normally distributed random numbers and arrays |
| zeros | Create an array of all zeros |
| : (colon) | Regularly spaced vector |
| |
| Special Variables and Constants | |
| ans | The most recent answer |
| computer | Identify the computer on which MATLAB is running |
| eps | Floating-point relative accuracy |
| i | Imaginary unit |
| Inf | Infinity |
| inputname | Input argument name |
| j | Imaginary unit |
| NaN | Not-a-Number |
| nargin, nargout | Number of function arguments |
| nargoutchk | Validate number of output arguments |
| pi | Ratio of a circle's circumference to its diameter, |
| realmax | Largest positive floating-point number |
| realmin | Smallest positive floating-point number |
| varargin, varargout | Pass or return variable numbers of arguments |
| |
| Time and Dates | |
| calendar | Calendar |
| clock | Current time as a date vector |
| cputime | Elapsed CPU time |
| date | Current date string |
| datenum | Serial date number |
| datestr | Date string format |
| datevec | Date components |
| eomday | End of month |
| etime | Elapsed time |
| now | Current date and time |
| tic, toc | Stopwatch timer |
| weekday | Day of the week |
| |
| Matrix Manipulation | |
| cat | Concatenate arrays |
| diag | Diagonal matrices and diagonals of a matrix |
| fliplr | Flip matrices left-right |
| flipud | Flip matrices up-down |
| repmat | Replicate and tile an array |
| reshape | Reshape array |
| rot90 | Rotate matrix 90 degrees |
| tril | Lower triangular part of a matrix |
| triu | Upper triangular part of a matrix |
| : (colon) | Index into array, rearrange array |
| |
| Vector Functions | |
| cross | Vector cross product |
| dot | Vector dot product |
| intersect | Set intersection of two vectors |
| ismember | Detect members of a set |
| setdiff | Return the set difference of two vector |
| setxor | Set exclusive or of two vectors |
| union | Set union of two vectors |
| unique | Unique elements of a vector |
| | Language Constructs and Debugging | Specialized Matrices | |