is there a CIS button on graphic calculators (Casio/TI)

Question

Is there a cis (CosX + iSinX) Button in CASIO graphic calculators ? if so where its ? if no is there any turn around for it ?

PS. I got a CASIO fx-9860G

Thanks

Isaac · Accepted Answer · 2011-03-13 07:42:23Z

up vote 3 down vote accepted

product of two polar-form complex numbers

So, entering 2∠30 is equivalent to entering $2\text{ cis }30°$.

answered Mar 13 '11 at 7:42

Isaac
21.1k44588

Cheers!!! Thanks alot ! – omeid Mar 13 '11 at 13:14

Michael Lugo · Answer 2 · 2011-03-02 04:48:28Z

up vote 1 down vote

$cis(x)$ is equal to $e^{ix}$.

answered Mar 2 '11 at 4:48

Michael Lugo
7,57821131

	Thanks for your answer I tried to put e^i(n) and it returns error on Casio. :( – omeid Mar 2 '11 at 6:04
	Have you turned on complex mode on the calculator? (Set up $\to$ Complex Mode). When does it return an error? In the graph mode? – please delete me Mar 2 '11 at 7:14

2 Answers