Rounding errors

[hellfire103]

Checklist

• I can reproduce the bug with the latest version given here.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected app version

1.4.0

Affected Android/Custom ROM version

GrapheneOS 2026062801 (Android 17)

Affected device model

Pixel 8

How did you install the app?

GitHub releases

Steps to reproduce the bug

1. Type 100÷3 and press equals
2. Type ×3 and press equals

Expected behavior

The calculation should return 100.

Actual behavior

The calculation returns 99.999999999999999

Screenshots/Screen recordings

Additional information

No response

[BrendonIrwan]

The app only supports binary operations so it has to tokenize your operation to (100 / 3) and (ans * 3).

If you want this feature then use a scientific calculator which evaluates the operation as a whole.

AFAIK no (real) basic calculator would account for such rounding.