Hi,

abs() returns all absolute value but is there such a function that returns all negative or make the value always negative? Is there not one because users can simply type ‘-’ infront of any expressions they use?

I scanned through http://www.sidefx.com/docs/houdini11.0/expressions/ [sidefx.com], either it's not there or it eluded me.

Cheers!

eitht.

Yep, you can simply put “-” in front of the expression.

Cheers!
steven

probably there isn't one,
there is no need for wrapping -abs() into a new function or is it?

EDIT: steven was faster

I believe the question i have here is simple math, was trying to offset the Y translation of a torus object.

Have 2 different chains of nodes which produces the same results, one had “-6” & the other “-4.3” - shouldn't it having “-6” on either give me the same translation… I'm confused.

eitht.

simple math:
you may be thinking that
1. you have initial transform of 0.85 which is relative referenced parameter
2. on one side you add -4.3 to it in the referencing expression
3. on second side you transform it -6 with another transform sop
4. and yet they both result in the same position (0.85-4.3 == 0.85-6 ?)

but in reality in your file you are not adding -4.3 to 0.85 but to -0.85
so one side: -0.85 + (-4.3) = -5.15
second side: 0.85 - 6 = -5.15
so they are equal and therefore they result in the same position

Ok that makes perfect sense, i'm going to enroll in lessons to brush up math. O_O
/bow, tamte and steven!
eitht.