Large(ish) Number Library - 2023/02/09 - v2.0.2

[TheArkive]

image.png (9.13 KiB) Viewed 1702 times

Handles numbers as strings, with few practical limits. My testing seems to indicate performance is decent. But I have yet to devise a decent "stress test" for mass computation and performance.

I'm actually not well versed in such things, so if someone can suggest a few links then I'll try to formulate the suggested stress test.

Features:

• Addition
• Subtraction
• Multiplication
• Division
• Configurable decimal precision on division (with no rounding)
• DivI() returns integer (Floor Division //)
• Mod() returns remainder
• DivIM() returns integer and remainder
• Decimals are no problem
• Exponents
• Comparisons (> < >= <= =)
• Rounding (like AHK Round())
• Dec to Hex conversion
• Hex to Dec conversion
• Dec to Binary conversion
• Binary to Dec conversion

============================================

Updates

2023/02/09

• fixed an oversight / regression brought on by the last commit

2022/07/15

• docs added

2022/07/14

• fixed DecToHex logic
• fixed logic in DecToBin()
• added bit_width param to conversion functions
  this is for either add zero-padding or truncating the number based on bit_width (kind of like casting)
• Changed Div() to be variadic, needed for negative exponents
• Changed Exp() to now support negative exponents
• DecToHex(), HexToDec(), DecToBin(), and BinToDec() now handle negative numbers

============================================

To-Do List

• check for more bugs, inaccuracies

Download on GitHub

[TheArkive]

2022/07/14

• fixed DecToHex logic
• fixed logic in DecToBin()
• added bit_width param to conversion functions
  this is for either add zero-padding or truncating the number based on bit_width (kind of like casting)
• Changed Div() to be variadic, needed for negative exponents
• Changed Exp() to now support negative exponents
• DecToHex(), HexToDec(), DecToBin(), and BinToDec() now handle negative numbers

Proper docs are next on my to-do list.

[lexikos]

You might consider removing the global dbg function in case someone who defines their own wants to use your library.

[TheArkive]

You're right. Those are left overs. I'll do that soon.

[TheArkive]

2022/07/15

• docs added

... and the junky dbg() func is moved out of the lib file.

[gmoises]

I tried Large(ish) Number Library - 2022/07/15 - beta.6
with AutoHotKey v2.0.2

I had to add the line _d_p := 0 just inside _div():

Code: Select all

	_div(x,y,&remain:=0) { ; x = dividend, y = divisor, remain = remainder
		_d_p := 0

The example script "Large Numbers Exampe.ahk" works
but I could not get the divisions right:

Code: Select all

; https://github.com/TheArkive/large_numbers_ahk2
#Requires AutoHotkey v2.0 64-bit
#Include Large Numbers.ahk
Obj := Math(16)
a := "799654708521478360985204793345804782146322647831036047852"
b := "1236504799654708521478360985204793345804782146328795"
MsgBox("Addition`n" . Obj.Add(a, b)
	. "`n`nSubstraction`n" . Obj.Sub(a, b)
	. "`n`nMultiplication`n" . Obj.Mult(a, b)
	. "`n`nDivision`n" . Obj.Div(a, b))

[TheArkive]

Fixed in latest push to repo (yesterday)

[gmoises]

Thank you, it works great.