HP35s Entering complex number arguments

[Dieter]

(08-20-2015 10:41 PM)Merwedv Wrote:  For example, how would I enter something like "5 theta pi"? When I try it the obvious way, I get a syntax error. Or if I would like to do something like "2*2 + 4i"?

I do not have a simple solution for the theta case, but the latter is simple and rather straightforward: 2 [ENTER] 2 [x] 4 [i] [+].
Assuming the calculator is set to RPN mode. In ALG mode you simply type "2x2+4i". ;-)

(08-20-2015 10:41 PM)Merwedv Wrote:  Is there a way to use the value of the stack registers as the arguments for complex numbers?

Sure. If the real and complex parts are in Y and X, simply press [i] [x] [+] to get y+ix.

(08-20-2015 10:41 PM)Merwedv Wrote:  I am also not able to use stored values for the arguments for complex numbers.

This can be done in the same way: [RCL] B [i] [x] [RCL] A [+]
Or, saving one stack register: [i] [RCL][x] B [RCL][+] A.

Dieter