My bignum basic calculator does the basic operations such as multiplication, addition, subtraction, division, modulus, increment(on vars) etc. on infinitely long real numbers. -----> It can even store ...

This would give the wrong answer. On a calculator, brackets must be used when raising negative numbers to a power. For example, to calculate -2 squared on a calculator, type in \((-2)^2\).

This would give the wrong answer. On a calculator, brackets must be used when raising negative numbers to a power. For example, to calculate -2 squared on a calculator, type in \((-2)^2\).