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disp

Display value of variable

Syntax

Description

example

disp(X) displays the value of variable X without printing the variable name. Another way to display a variable is to type its name, which displays a leading "X =" before the value.

If a variable contains an empty array, disp returns without displaying anything.

Examples

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Create a variable with numbers and another variable with text.

A = [15 150];
S = 'Hello World.';

Display the value of each variable.

disp(A)
    15   150

disp(S)
Hello World.

Display a matrix and label the columns as Corn, Oats, and Hay.

X = rand(5,3);
disp('     Corn      Oats      Hay')
disp(X)
     Corn      Oats      Hay
    0.8147    0.0975    0.1576
    0.9058    0.2785    0.9706
    0.1270    0.5469    0.9572
    0.9134    0.9575    0.4854
    0.6324    0.9649    0.8003

Display a link to a Web page by including HTML hyperlink code as input to disp. For example, display a link to the MathWorks® Web site.

X = '<a href = "http://www.mathworks.com">MathWorks Web Site</a>';
disp(X)

Here are three ways to display multiple variable values on the same line in the Command Window.

Concatenate multiple character vectors together using the [] operator. Convert any numeric values to characters using the num2str function. Use disp to display the result.

name = 'Alice';
age = 12;
X = [name,' will be ',num2str(age),' this year.'];
disp(X)
Alice will be 12 this year.

Use sprintf to create text, and then display it with disp.

name = 'Alice';
age = 12;
X = sprintf('%s will be %d this year.',name,age);
disp(X)
Alice will be 12 this year.

Use fprintf to directly display the text without creating a variable. However, to terminate the display properly, you must end the text with the newline (\n) metacharacter.

name = 'Alice';
age = 12;
fprintf('%s will be %d this year.\n',name,age);
Alice will be 12 this year.

Input Arguments

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Input array.

To display more than one array, you can use concatenation or the sprintf or fprintf functions as shown in the example, Display Multiple Variables on Same Line.

Introduced before R2006a

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