Re: Division of two complex numbers

Am 20.01.2025 um 23:40 schrieb Chris M. Thomasson:
 

[...] Fwiw, a fun part of GLSL is doing stuff like:
>
vec3 a = vec3(.25, 1, .75);
vec2 b = a.xz;
vec2 c = b + vec2(.75, .25);
>
c now equals (1, 1)

 Nice.
  In math:
 a := (.25, 1, .75) ,
 b := (a_1, a_3) ,
 c := b + (.75, .25) .
 Then c = (1, 1) .
 :-P
  Question. What if
 vec4 a = vec4(.25, 1, .75, .999);
 vec3 b = a.xz<?>;
 I'd like to get b == (.25, .75, .999). :-P