QtCalculator

A simple GUI calculator built using Qt and C++

Intro

This program can calculate most of basic mathematical expressions by evaluating them accordingly to the Order of operations. It supports:

• All arithmetic operations (including '=' sign for variable assignment)
• All bitwise operations (~, &, ∨, ^, <<, >>)
• Other helpful operations such as: modulus division, exponentiation, absolute value and scientific notation (2E5 = 2 × 10⁵)
• Multiple number bases (binary, octal, decimal and hexadecimal)
• Basic functions such as: sine, cosine, lcm and gcd
• Scrolling through result history by using arrow up and arrow down keys

Examples

Examples of expressions that this program can calculate:

2 + 2 = 4
(0 + 913972 - 1000) * 3 / 2 % 999 = 828
2|1 - 3| + 2|1 - 3| = 8
((13) << 8) >> ((127) % 10 & (31 + 7)) = 52
(5 << 1) ∨ (5 << 2) ^ (5 << 3) = 62
(0 + ~(0xDF234 & 1000) * 3) / -2 = 817.5
1 + (((2 + (3 + (4 + (5 + 6) * -7))) & 127) << 1) * -3 = -359
2sin(3.1415 / 2) + 3cos(0) = 5
gcd(24, 36) = 12
0xFF + 0b11 - 015 = 245

x = 3
x**3 + 3x**2 + 3x**1 + x**0 = 64

Setup

1. Go into the project directory
2. Create a build folder and go into it

mkdir build && cd build

3. Compile using CMake

cmake .. && make

4. Run it

./Calculator

License

Licensed under MIT.