Casio fx-9860GII Quick Start Manual page 5

Calculations can be performed with complex numbers and answers can be displayed in a+bi form.
7. To calculate (-3 + 2i ) + 15i; enter the following:
•
ie(n3+2q)+15ql
Sigma calculations can also be performed in the RUN menu.
8. To calculate
•
iruea,s-3a,+5$a,$2$6l
fx-9860GII Quick Start Guide
; enter the following:
RUN-MAT
5