Try it yourself:
| @1 |
-4.5
|
|
| @2 |
-(-5.6)
|
|
| @3 |
-"22"
|
unaryMinus(x) changes the sign of x. It is the operation behind the leading minus in -x.
Negating 5 gives −5; negating −5 gives 5. With matrices, every entry is negated.
Use subtract() for a difference between two values, unaryPlus() for explicit positive conversion, abs() for magnitude, and sign() for classification.
Negation is not the same as taking a reciprocal. Use division or a negative exponent when that is required.
Start with one of the editable examples above, then replace its arguments with your own values. Keeping the function on a separate calculator line makes the input and result easy to compare. For a longer workflow, assign the result to a variable or reference that line in the next expression.
Check the shown signature before adding optional arguments, and use the related-function links to compare operations with similar purposes.