Mini Calculator Interpreter

Tiny calculator interpreter supporting Mathematical functions using Python.

Features

• Variable
• Mathematical Constants
• Mathematical Functions

Mathematical Constants

• pi
• e

Mathematical Functions

• sin
• cos
• log
• log10
• log2
• exp
• sqrt
• acos
• atan
• radians
• sinh
• cosh
• tanh
• asin
• ceil
• fabs
• factorial
• floor
• copysign
• pow

Download

git clone https://github.com/BaseMax/MiniCalculatorInterpreter
cd MiniCalculatorInterpreter
sudo pip3 install ply
python calculator.py

Grammar

S -> statement

statement -> NAME EQUALS expression
statement -> expression

expression -> expression PLUS expression
expression -> expression MINUS expression
expression -> expression DIVIDE expression
expression -> expression TIMES expression
expression -> MINUS expression
expression -> LPAREN expression RPAREN

expressions -> expressions COLON expression
expressions -> expression
expressions -> <empty>

expression -> NAME LPAREN expressions RPAREN
expression -> NUMBER_INT
expression -> NUMBER_DOUBLE
expression -> NAME

Using

> 5+5
10
> 5*6
30
> pow(5,2)
25.0
> pi*2  
6.283185307179586
> e/2
1.3591409142295225
> log10(10)
1.0
> badFunction(10)
Undefined function 'badFunction'
None
> log2(10)
3.321928094887362
> log(10)
2.302585092994046
> test=5+6+sin(pi/2)
> test*test+5
149.0
> test=test*5
> test
60.0

Acknowledgments

It's been a few years since I have worked with the ply library And I really forgot about that name. Professor Ahmad Yoosofan was the one who reminded me of this library again. Thanks so much. (Video: Working with ply on YouTube)

Similar Projects

• https://github.com/BaseMax/CFG2CNF

Installing Dependencies

Depends on ply and python.

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Max Base

My nickname is Max, Programming language developer, Full-stack programmer. I love computer scientists, researchers, and compilers. (Max Base)

Asrez Team

A team includes some programmer, developer, designer, researcher(s) especially Max Base.

Asrez Team