To be able to edit code and run cells, you need to run the notebook yourself. Where would you like to run the notebook?

This notebook takes about 20 seconds to run.

In the cloud (experimental)

Binder is a free, open source service that runs scientific notebooks in the cloud! It will take a while, usually 2-7 minutes to get a session.

On your computer

(Recommended if you want to store your changes.)

  1. Copy the notebook URL:
  2. Run Pluto

    (Also see: How to install Julia and Pluto)

  3. Paste URL in the Open box

Frontmatter

If you are publishing this notebook on the web, you can set the parameters below to provide HTML metadata. This is useful for search engines and social media.

Author 1
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using PlutoUI
156 ms

Start both clocks:

and wait 6 seconds

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229 μs
image/svg+xml image/svg+xml image/svg+xml speed:
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@bind reset Clock(Δt)
40.0 ms

Run superclock:

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md"""Run superclock: $(@bind do_clock html"<input type=checkbox>")"""
223 ms
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if do_clock === true
@bind trigger supertimer
end
659 μs

Reached 0.0 ticks per second

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let
reset
freq = num_ticks[] / Δt
num_ticks[] = 0

md"Reached **$(freq) ticks per second**"
end
5.9 ms
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num_ticks = Ref(0)
13.7 μs
Error message

UndefVarError: trigger not defined

Stack trace

Here is what happened, the most recent locations are first:

  1. from This cell: line 2
    let	trigger	num_ticks[] += 1
let
trigger
num_ticks[] += 1
end
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---
3
Δt = 3
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11.5 μs
supertimer = html"""
<script>
let i = 0

const handle = setInterval(() => {
i += 1
currentScript.value = i
currentScript.dispatchEvent(new CustomEvent("input"))
}, 1)

invalidation.then(() => {
clearInterval(handle)
})

</script>
""";
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31.7 μs