Operation Manual

Chapter 2: Math, Angle, and Test Operations 58
Complex numbers can be stored to variables. Also, complex numbers are valid list elements.
In Real mode, complex-number results return an error, unless you entered a complex number as input.
For example, in Real mode
ln(L1) returns an error; in a+bi mode ln(L1) returns an answer.
Entering Complex Numbers
Complex numbers are stored in rectangular form, but you can enter a complex number in rectangular
form or polar form, regardless of the mode setting. The components of complex numbers can be real
numbers or expressions that evaluate to real numbers; expressions are evaluated when the command is
executed.
You can enter fractions in complex numbers, but the output will always be a decimal value.
Real mode
a+bi mode