negate the numeric argument
The result is equal to
0 - argument
| std::plus | add two numbers of any kind |
| std::minus | subtract two numbers of any kind |
| std::times | multiply two numbers of any kind |
| std::over | divide two numbers of any kind |
| std::div | divide two integer numbers |
| std::mod | compute the remainder of two integer numbers |
| std_types::negative_integer | returns a |
| std_types::positive_integer | returns a negative_integer or 0 |
| std_types::real | returns the negated real value |