# Simple mandelbrot browser v2

**URL:** <https://forum.makecode.com/t/simple-mandelbrot-browser-v2/784>\
**Category:** Arcade\
**Created:** [November 15, 2019, 5:11am UTC](https://forum.makecode.com/t/simple-mandelbrot-browser-v2/784 "2019-11-15T05:11:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shaoziyang](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/shaoziyang/32/467_2.png) [@shaoziyang](https://forum.makecode.com/u/shaoziyang)\
**Post date:** [November 15, 2019, 5:11am UTC](https://forum.makecode.com/t/simple-mandelbrot-browser-v2/784/1 "2019-11-15T05:11:51Z")

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![GIF%202019-11-15%2012-25-59](https://us1.discourse-cdn.com/flex020/uploads/makecode/original/1X/b8c90384a241ba72bf6fbccdaebc7e59641a7846.gif)

I have upgrade my simple mandelbrot browser, it is much fast now. I use guess method to accelerate calcaute, and display sketch first.

> **[quick mandelbrot](https://arcade.makecode.com/57984-51615-49076-33703)**
>
> Made with ❤️ in Microsoft MakeCode Arcade.

And I found a bug in develop, pause(0) will make simulator halt, in real board it works. So I have to use pause(1), this will slightly reduced running speed.

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**Author:** ![AlexK](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/alexk/32/33339_2.png) [@AlexK](https://forum.makecode.com/u/AlexK)\
**Post date:** [November 15, 2019, 6:46pm UTC](https://forum.makecode.com/t/simple-mandelbrot-browser-v2/784/2 "2019-11-15T18:46:53Z")

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The `pause(0)` error was fixed here:

> <https://github.com/microsoft/pxt-arcade/issues/1098>
>
> Describe the bug
> The following code causes arcade to lock up completely:
> pause(0)
> scene.setBackgroundColor(5)
> pause time \>= 1 works fine
> To Reproduce
> Steps to reproduce the behavior:
> Go...

The fix is in beta now; it will get pushed to production when it gets its next update.

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**Author:** ![richard](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/richard/32/5417_2.png) [@richard](https://forum.makecode.com/u/richard)\
**Post date:** [November 15, 2019, 7:08pm UTC](https://forum.makecode.com/t/simple-mandelbrot-browser-v2/784/3 "2019-11-15T19:08:30Z")

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This is very cool! I love the preview (and the burger)