matlab函数英文说明(2)

specified by str.

function - Declare function name, inputs, and outputs

This MATLAB function declares a function named myfun that accepts inputs

x1,...,xM and returns outputs y1,...,yN.

disp - Display text or array

This MATLAB function displays the contents of X without printing the variable

name.

num2str - Convert number to string

This MATLAB function converts array A into a string representation str.

continue - Pass control to next iteration of for or while loop

This MATLAB function temporarily interrupts the execution of a program loop,

skipping any remaining statements in the body of the loop for the current pass. xlswrite - Write Microsoft Excel spreadsheet file

This MATLAB function writes array A to the first worksheet in Excel file,

filename, starting at cell A1.

find - Find indices and values of nonzero elements

This MATLAB function returns a vector containing the linear indices of each

nonzero element in array X.

mesh - Mesh plot

This MATLAB function draws a wireframe mesh with color determined by Z, so color

is proportional to surface height.

polar - Polar coordinate plot

This MATLAB function creates a polar coordinate plot of the angle theta versus

the radius rho.

round - Round to nearest decimal or integer

This MATLAB function rounds each element of X to the nearest integer.

log - Natural logarithm

This MATLAB function returns the natural logarithm ln(x) of each element in

array X.

input - Request user input

This MATLAB function requests user input by displaying the prompt string on the

screen.

isprime - Determine which array elements are prime

This MATLAB function returns a logical array the same size as X.

abs - Absolute value and complex magnitude

This MATLAB function returns the absolute value of each element in array X.

tan - Tangent of argument in radians

This MATLAB function returns the tangent of each element of X.

axis - Axis scaling and appearance

This MATLAB function sets the limits for the x- and y-axis of the current axes. eye - Identity matrix

This MATLAB function returns the scalar, 1.

varargin - Variable-length input argument list

This MATLAB function is an input variable in a function definition statement