The Mugen Fighters Guild - Abs (math) (Triggers)

JustNoPoint

Abs (math) (Triggers)

New #1 September 09, 2015, 05:59:38 pm

Computes the absolute value of its argument.

Format:
abs(exprn)
Arguments:
exprn
Expression to compute the absolute value of.
Return type:
Same as the type of exprn.
Error conditions:
Returns bottom if exprn evaluates to bottom.

Last Edit: September 18, 2015, 02:56:28 pm by Just No Point

felineki

Re: Abs (math) (Triggers)

#2 September 09, 2015, 06:45:12 pm

A frame here, a pixel there.

So, if you have an expression whose result could end up being negative or positive, using this will return the positive equivalent if it turns out to be negative? I was just thinking the other day about how to improve my Akuma's hitspark placement code, and was wondering if Mugen had something like this. It should come in handy.

「我は、再現度を極めし物。
　うぬらの無力さ、その体で知れい！」

JustNoPoint

Re: Abs (math) (Triggers)

#3 September 09, 2015, 06:59:07 pm

@cybaster:
@Rajaaboy:
@xgargoyle:
Just tagged the top 3 math guys off the top of my head to better answer.
I enjoy posting these because I read them and try to absorb them as I do.
And I see it helps to bring a bit of spotlight on each too.

I was a bit unsure exactly what this meant so I'm glad it's getting some clarification! Math isn't a strong point of mine.

Алексей

Re: Abs (math) (Triggers)

#4 September 09, 2015, 07:04:01 pm

Target Acquired.

I think the easiest way to describe abs() is that whatever value/expression you pass to it as a parameter will always have a positive result.

Code:

abs(-1) = 1
abs(1) = 1

-[Все слова это только слова.]-

Foobs

Re: Abs (math) (Triggers)

#5 September 09, 2015, 07:12:52 pm

90's Kawaii
:thinking:
Online

felineki link=topic=168972.msg2160024#msg2160024 date=
112 said:

So, if you have an expression whose result could end up being negative or positive, using this will return the positive equivalent if it turns out to be negative?

Yeah. Useful to avoid negative roots and negative distances. Useful if you want a V shaped costellation of explods, too.

XGargoyle

Re: Abs (math) (Triggers)

#6 September 09, 2015, 08:14:03 pm

Hedgehog Whisperer
Red Bull addict

You should tag Bia as well, she's the best at math stuff.

There's not much that can be said from abs(), it basically removes the sign of any number.

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altoiddealer

Re: Abs (math) (Triggers)

#7 September 10, 2015, 07:11:30 am

Robotics Engineer

felineki said, September 09, 2015, 06:45:12 pm

So, if you have an expression whose result could end up being negative or positive, using this will return the positive equivalent if it turns out to be negative?

Precisely. I've been using Abs() a lot lately due to how useful it is.