- #1

Rade

## Main Question or Discussion Point

Question, in order to produce a 270 degree geometric rotation of the complex number (a + bi), would this be correct:

(a + b

*i*) * (-

*i*)

It seems logical since a 90 degree rotation results from (a + b

*i*) * (

*i*)

Next question. What would be the equations for rotation of (a + b

*i*) by 45 degrees, 135 degrees, 225 degrees ?

Thanks for help.