The '-l' option is used to enable the math library, and the 'scale' variable is set to 4 to get the result to 4 decimal places. Learn more about them here. For example, trying to divide by zero will result in a syntax error. Deal with decimals As I mentioned in the beginning, the bc command is used when your output has decimals, but by default, it won't show any. The list of boolean operations and their output are given below.
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