if()

Programming

if() is a MATLAB®-compatible programming function for conditional execution. executes the first block whose condition is true (nonzero). optional elseif and else clauses provide alternative paths. Run it online in your browser with SimLab — free, no install, no license required.

Conditional execution. Executes the first block whose condition is true (nonzero). Optional elseif and else clauses provide alternative paths.

▶ Try if() in SimLab — Free

Syntax

if condition ... end

if condition ... else ... end

if condition ... elseif condition ... else ... end

Examples — run if() in your browser

x = 5;
if x > 0
  disp("positive")
end

▶ Run

x = -3;
if x > 0
  disp("positive")
elseif x == 0
  disp("zero")
else
  disp("negative")
end

▶ Run

Frequently Asked Questions about if()

Is the if() function free to use in SimLab?

Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run if() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.

Do I need to install MATLAB to use if()?

No. SimLab runs entirely in your web browser with zero installation. The if() function works without any MATLAB® license or software download.

What does if() do?

Conditional execution. Executes the first block whose condition is true (nonzero). Optional elseif and else clauses provide alternative paths. It is a MATLAB®-compatible programming function available in SimLab with the same calling syntax as MATLAB® — typically: if condition ... end.

Can I run if() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls if(), and run it. Execution happens locally in your browser — no data leaves your machine.

Try SimLab — MATLAB®-compatible, free, in your browser

510+ functions. Runs in your browser. No install. No license.

Open SimLab

MATLAB® is a registered trademark of The MathWorks, Inc. SimLab is an independent project by Simulations4All and is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.

if()

Syntax

Examples — run if() in your browser

See Also

Frequently Asked Questions about if()

Try SimLab — MATLAB®-compatible, free, in your browser

Stay Updated