Matlab Function

Function

S = struct (field,value) creates a structure array with the specified field and value. The value input argument can be any data type, such as a numeric, logical, character, or cell array. If value is not a cell array, or if value is a scalar cell array, then s is a scalar structure. For instance, s = struct ('a', 1 2 3) creates a 1-by-1. Most MATLAB functions, like sin, cos, log, and many others, work regardless of the size of the input. If A is a numeric array of any size, then B=sin(A) is another array such that B(i,j) sin(A(i,j)) Example This creates a 20-by-4-by-2 3D array called A and then creates another array with the same dimensions using the exponential function.

function [y1,...,yN] = myfun(x1,...,xM) declares a function named myfun that accepts inputs x1,...,xM and returns outputs y1,...,yN. This declaration statement must be the first executable line of the function. Valid function names begin with an alphabetic character, and can contain letters, numbers, or underscores.

You can save your function:

  • In a function file which contains only function definitions. The name of the file must match the name of the first function in the file.

  • In a script file which contains commands and function definitions. Functions must be at the end of the file. Script files cannot have the same name as a function in the file. Functions are supported in scripts in R2016b or later.

Matlab Function Syntax

Files can include multiple local functions or nested functions. For readability, use the end keyword to indicate the end of each function in a file. The end keyword is required when:

Matlab Function Ga

  • Any function in the file contains a nested function.

  • The function is a local function within a function file, and any local function in the file uses the end keyword.

  • The function is a local function within a script file.