Calculator
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20220411:
Added gcd(m,n) and lcm(m,n) support.
Don't crash with number % 0.
20220404:
Added fibonacci and factorial support.
Examples: fib(10) and 10!
20220330:
Added modulo support.
20220325:
Log2(x) works too! It's simple:
log2(8) = 3.