Calculator app has been around in macOS forever ... although doing so can become confusing very quickly if the statement is complex. Bitwise operators can take one (unary), two (binary), or ...

This mode of the calculator is specially designed for programmers who work for binary, decimal, octal and hexadecimal calculations, allowing QWORD, bitwise operations and Basic calculations.

There was a brief period through the 1960s into the 1970s when the last word in electronics was the calculator ... implement a decimal equivalent of a bitwise shift multiplication.