by Robert Rayment (69 Submissions)
Category: Math/Dates
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(16 Votes)
BigNum Calculator by Robert Rayment. Does calculations on, up to, 1024 bit numbers (~310 dec & 256 hex digits). Operations on single numbers include shift left/right, roll left/right, Not, Factorial, Squared & Cubed. On two numbers - And, Or, Xor, Eqv, Imp, Div/Mod, Mul, Sub & Add. The full results can be displayed and saved to the clipboard or a file. All calculations are for positive integers only. Make sure to compile the program, particularly for large numbers. Machine code is used for some conversions to speed things up by a few seconds since they take much longer than calculations, principally for 4 digit factorials. For small numbers this has some educational value but very large numbers are just a curiosity, though apparently there is some use in encryption. Zip 27 KB.
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Update: Added view clipboard.
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Update2: Added permutations & combination. Div correction.
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Update3: Minor re-arrangements.
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Update 1st July 2007: Correct FullIntDivision routine.
Inputs
Numbers
Assumes
Just run
Code Returns
Calcs
API DeclarationsMemory, On top & ASM APIs
VBcoders
