wawa1474 / forthcalc

Scientific Calculator (RPN/Forth)

ForthCalc

Scientific Calculator (RPN/Forth) Features:

• 75 mathematical functions
• 8 cells display
• 4096 cells stack
• 5 memories
• Forth words to manage the stack (DUP, DROP, SWAP, ecc.)
• GDC, MCM, Factorize number
• Solve proportion
• Solve Linear System
• Solve quadratic and cubic equation (real and complex roots)
• Complex arithmetic
• Vector arithmetic
• Fraction arithmetic
• Polar Coord <-> Rect coord
• Number to Fraction Generator
• Combinations, Permutations
• Factorial, Fibonacci (BigInteger)
• Degrees Minutes Seconds <-> Decimal Degrees
• Sequence generator
• Statistical parameters of a serie
• Linear Regression
• Slope
• Time arithmetic
• Copy and Paste stack numbers
• Save and Load stack numbers
• Edit stack numbers with external text editor
• Infinity and NaN numbers
• Italian and English manual (60 pages)
• ...

Fast Fibonacci routine
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https://www.nayuki.io/page/fast-fibonacci-algorithms