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light1986
25th February 2002, 22:50
I know that this has probably been asked a lot, but what math is needed for using the more advanced part of the AVS?

Montana
25th February 2002, 23:08
trigonemtry

Mizter_E
26th February 2002, 19:05
Ive always wondered what exactly do you need to know. Cuz there are functions involving r and d. so i know you're lying montana!

flatmatt
26th February 2002, 19:27
Well, depends what you want to do with AVS. The biggest things I can see are understanding polar coordinates, radians, and trigonometric functions. But there are a lot of different things you can do with AVS that take more advanced math, or you can work in rectangular if you don't understand polar. I still don't know what the heck a sigmoid is, but my presets look fine. So, it really depends on what you want to do. Remember, you don't need any math to start out if you're not writing custom movements or superscopes.

Then again, there's nothing wrong with the "type random equations and see what happens approach." :p

UnConeD
28th February 2002, 13:31
Here you go:

1
__________
sigmoid(x, a) = -ax
1 + e

http://astronomy.swin.edu.au/~pbourke/analysis/sigmoid/sigmoid1.gif

The function arises in differential math, but I'll spare you the gory details. You can view it as a constraining function which maps any value from (-infinity to +infinity) onto (0 to 1). As you can see from the definition, the parameter 'a' is simply a multiplication factor for the first parameter 'x'.

psyfive
28th February 2002, 14:38
Originally posted by flatmatt
Then again, there's nothing wrong with the "type random equations and see what happens approach." :p

:D

Thats what I usually end up doing:cool:

light1986
28th February 2002, 20:39
I wasn't sure if it was any more than trigonometry. I'm luckiy that not only are we doing some of in in geometry, but I can do trig next year.

Jaheckelsafar
1st March 2002, 07:19
Wish I knew I'd be trying this stuff when I was in high school. Perhaps I might have passed my Algebra/Geometry course.

On secod thought, no. The teacher was just too boring. (sleeping during class does tend to have a detrimental affect on one's marks, though it did lead to the discovery of the pillow binder :) )

flatmatt
2nd March 2002, 19:45
Sleeping in math class doesn't hurt my grade... :D

Deamon
17th March 2003, 08:08
I'm at High School now, believe me, you really don't learn that much math you can use for AVS's. It won't be much more than (x = x + 0.1 ). Easiest level of geometry is the best you get there. Still, it is a nice preparation on the better parts of required math.

Phaze1987
17th March 2003, 09:16
light1986(nice name heheh) : it aint important what math you use but how much of it you understand...look at some basic coding,figure it out,do your own then take it to the next level. It`s not that hard you`ll see :)

PS.I sleep at languages hour,at math the teacher is VERY MEAN and gives us small grades,hard tests and makes fun of us...:(

anubis2003
17th March 2003, 11:22
Daemon, you do learn some useful math at school if you take the right courses. Trig is very useful, and computer math/science courses also have some interesting things.

shreyas_potnis
19th March 2003, 05:45
i dont know about other people, but I learnt all trig at home. we have trig in high school and I still have 2 yrs before i go there

jheriko
3rd April 2003, 19:58
Heres a list of the most useful math subjects I have found for AVS:

Co-ordinate Geometry, Vectors, Matrices, Plane Geometry (In which I include Trigonometry), Solid Geometry, Calculus.

A few of specific things from different areas that are useful are random numbers, linear/bilinear/trilinear/... interpolation, projective geometry, raytracing.

Do some searches on the above using Google or something.

anubis2003
3rd April 2003, 20:03
Yeah, those are the best. Too bad most HS math courses don't go into these topics in depth.:hang:

blaz
13th April 2004, 17:02
well, I am a freshmen at AVS, and specialy Maths. I know the basic formulas like d=d+0.4, or x=cos(0.5)
But I just can not understand something like this:
d=log10(d*r-2+1/y*x/x+y)*sin(r*x+y/x*y+r)
I just can not believe how you can do it.
or, if someone, can tell my, how long
did I take for him, to understand all of the maths.
----------------------------------------
I apologize if my English isn't good, I am from SLovenia, if you know where that is

Warrior of the Light
13th April 2004, 19:12
d=log10(d*r-2+1/y*x/x+y)*sin(r*x+y/x*y+r)
One relief... I don't get it either.

Another thing: