Solution 33811: Correcting a Syntax Error When Entering a Complex Value in Polar Form on the TI-Nspire™ Family.
How do I correct a Syntax error when entering a complex value in polar form?When entering a complex value in polar form, it is possible to receive a syntax error if the value is not entered within parentheses ( ).
For Example: 12∠ 52
1) Enter   [ctrl] [catalog].
2) Select [∠ ] and press [enter]. A "Syntax" error will appear.
To correct this, enter the example correctly using the steps below.
1) Press [(].
2) Press   [ctrl] [catalog].
3) Select [∠ ] and press [enter].
4) Press   [)].
5) Press [enter].
Please Note: The angle is interpreted according to the current Angle mode setting. The displayed answer may change according to these settings.