In this example, the fraction precision is set to 6.
Complex numbersComplex results
To enter complex numbers
Storing complex numbers
The HP 39gs can return a complex number as a result for some math functions. A complex number appears as an ordered pair (x, y), where x is the real part and y is the imaginary part. For example, entering 
–1
Enter the number in either of these forms, where x is the real part, y is the imaginary part, and i is the imaginary constant, 
–1 :
•(x, y) or
•x + iy. To enter i:
•press 
or
•press 
, 
or 
keys to select Constant,
to move to the right column of the menu, 
to select i, and 
.
There are 10 variables available for storing complex numbers: Z0 to Z9. To store a complex number in a variable:
•Enter the complex number, press 
, enter the
variable to store the number in, and press 
.
4
5
Z 0 
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