CLI calculation tools

rfcalc stands for "R4 Calculations". R4 is my self representaion =_=

Installation

1. Intall Rust
2. Run cargo install rfcalc

Usage

• rfcalc factorial <NUM>: Calculate the factorial of a number (max: 20)
• rfcalc hw <NUM>: Calculate the Hamming weight of a binary number
• rfcalc c <N> <K>: Calculate the combination of N choose K

rfcalc bytes <expression to calculate>

Quickly devide bytes

only support units of lower case now

E.g.

rfcalc bytes "4mb/4kb"
1024 kb

Testing

cargo run -- <subcommand> <args>