Calc4 is a programming language created in 2018 by Yuya Watari.
| #2123on PLDB | 8Years Old |
git clone https://github.com/proprowataya/calc4Calc4 is a programming language where everything in its code is an operator.
[fib2|x, a, b|x ? ((x-1) ? ((x-1) {fib2} (a+b) {fib2}a) ? a) ? b] 38{fib2}1{fib2}0