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Re:Ask HN: What math equations and properties should enginee... by itake on Friday September 03, 2021 @03:24PM (#28408276)
My most commonly used math functions are (in no particular order):

- Average

- Medium

- Max / Min

- Length/Count

- Add / Increment

- Subtract / Decrement

Re:Ask HN: What math equations and properties should enginee... by nocubicles on Saturday September 04, 2021 @12:04AM (#28411975)
Same for me plus I use:

1. Weighted average 2. Percentage calculations 3. Absolute number

Thats it I can think of for doing financial software development for the past 10+ years.