How do you find the square root of a negative number, on a scientific calculator?
Usually you do it in the same way as for a positive number.
Here's how to do it on different brands of calculators.
Press 2nd F, √.
The display shows
Would others please add the instructions for their brand of calculator?
I use the fact that
Use the calculator's square root function to find the square root of the positive, then tack an