8000 Emulator crash / hang on specific calculation · Issue #1990 · numworks/epsilon · GitHub
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Emulator crash / hang on specific calculation #1990

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MBoffin opened this issue Nov 5, 2022 · 2 comments
Closed

Emulator crash / hang on specific calculation #1990

MBoffin opened this issue Nov 5, 2022 · 2 comments

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@MBoffin
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MBoffin commented Nov 5, 2022

Description:
When doing a specific calculation, the web emulator hangs and crashes. Doing this same calculation on the physical calculator does not hang or crash.

Screenshot:
EmulatorHang

Steps to reproduce the behavior:

  1. Go to the Numworks web emulator
  2. Go to Settings and set the Angle Measure setting to Degrees
  3. Type √(2²+4²-2*2*4cos(55)) (the entire expression should be under the √, as per screenshot)
  4. Hit EXE
  5. Type acos((Ans²+4²-2²)/(2*Ans*4)) (see screenshot)
  6. Hit EXE and observe the crash / hang

Expected Behavior:
The calculated answer of ≈29.86745212 as provided by the physical calculator. If I do not use Ans, but instead press the up arrow to grab the last calculation's answer directly, the calculation works as intended without crash. Only when using Ans does it crash.

Environment:
This is using the web emulator software version 19.5.0, and it happens in both Firefox 106.0.4 64-bit and Chrome 107.0.5304.88 64-bit, both on Windows 11.
@pitonyak
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I tested on google chrome on Fedora Linux with no crash.

image

This shows software version 21.2.2

@KarineNumWorks
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Hello ! This seems to have been fixed in more recent version as I can't reproduce the crash. I will close the issue but don't hesitate to reopen if needed !

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@pitonyak @MBoffin @KarineNumWorks
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