Derivator

Derivator is a small computer algebra system. It allows you to evaluate mathematical expressions, simplify some of them and, surprizingly, take derivatives.

Build

Debug version:

mkdir build_debug && cd build_debug
cmake -DCMAKE_BUILD_TYPE=Debug <project-root-dir>
make

Release version:

mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Release <project-root-dir>
make

Tip: You can use rlwrap ./repl instead of ./repl if you want to have GNU Readline features (history, navigation over input line, etc.)

Features

• Arithmetic operations: (1 + 2) / 3 * 15 - 179 * (3 - 5)
• Symbolic evaluation: x + 2 * x + y * y - y * (x + 3) * y / (x + 3) turns into x * 3
• Functions: sin(3 * pi / 4) * log(exp(35))
• Taking derivatives: x', x'_y, log(x * y)'_x'_y
• Substitution: (x * x * x - 6 * y + x * y * 8 + 3)[x = 3][y = 5]