MATLAB Functions Help Desk

while

Purpose

Repeat statements an indefinite number of times

Syntax

Description

while repeats statements an indefinite number of times. The statements are executed while the real part of expression has all nonzero elements.
expression is usually of the form

where rop is ==, <, >, <=, >=, or ~=.

The scope of a while statement is always terminated with a matching end.

Examples

The variable eps is a tolerance used to determine such things as near singularity and rank. Its initial value is the machine epsilon, the distance from 1.0 to the next largest floating-point number on your machine. Its calculation demonstrates while loops:

See Also

all         Test to determine if all elements are nonzero

any         Test for any nonzeros

break       Break out of flow control structures

end         Terminate for, while, switch, and if statements or indicate last index

for         Repeat statements a specific number of times

if          Conditionally execute statements

return      Return to the invoking function

switch      Switch among several cases based on expression



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