8 replies to this topic

[@Alex@]

MathDotN

What is MathDotN ?

MathDotN is a personal collection of scripts that deal with mathematical concepts , physics and data handling. This collection is constantly being added to whenever I need a break from my current project or when something just pops into my head.

Who created MathDotN?

I ( Alex Arthur) created most of MathDotNs content, however some scripts draw inspiration from ones previously created by others from the programming community and other are directly taken from free resource sites. These scripts specify where they come from.

What exactly is in MathDotN?

MathDotN currently contains 74 scripts. These scripts contain code that calculates simple things like the area of a circle to manipulation of vectors and matrices to using Simpsons Rule to integrate.

Where can I download MathDotN?

• Download the scripts : Here
• Dowload the gm81 : Here

Is there documention concerning MathDotN?

MathDotN comes with a script labelled IMPORTANT, although not strictly a manual does display all scripts in MathDotN names and arguments. The indivual scripts themselves mostly have comments explaining there use. If you would like more information or help feel free to leave a comment.



This format is stupid can I comment on that?
Yes, feel free to leave any comments you like. I will continue to add to this collection of scripts so if you have any ideas that fit the theme and I'll see what I can do.

Edited by @Alex@, 18 August 2011 - 12:36 PM.

[Orswen]

please fix the link

[@Alex@]

Sorry I was unaware this link was down. Here is a link for you : http://www.host-a.ne...NewMathDot.gm81

[Orswen]

is there a gmk version?

[@Alex@]

No, I'm afraid not. Since the hard-ware upgrade here I haven't used a version of gamemaker that produces gmks. You might want to download and import the scripts or use Gm8.1 lite to read the scripts and import them into your current version of GameMaker. YellowAfterlife has gm81 -> gmk convertor around that you are free to use if you want less hassle. http://gmc.yoyogames...howtopic=505903

[Gamer3D]

These scripts are quite inefficient.
For example,

if radtodeg(argument0) mod 90 = 0
    {
    return 0 ;
    }
    
if tan(argument0) != 0
    {
    return 1/tan(argument0) ;
    }

Is inaccurate (cotan is defined at pi/2 + pi * n) and can be replaced with the much better

var s;
s = sin(argument0);
if (s != 0)
    return cos(argument0) / s;
else
    show_error('Cotangent undefined at multiples of pi.', false);

Also, many of these scripts are of dubious usefulness.

[Agamer]

That's an interesting collection of scripts. However, they are quite disorganized: some don't have the argument list in the help documentation at the scripts' beginning; some don't even provide any help. Some are so simple that as inline functions they would go much faster. Some are a bit inefficient, and some are basically worthless. Nonetheless, the extensive group of ds_list functions is actually pretty useful.
For an idea of the type of scripts that can be very helpful, check out my scripts linked in my signature. (I use most of these scripts constantly)

EDIT: Oh, and one other really bad thing that you do is set local variables! This is a very bad idea, causing both unnecessary memory leaks and very potential errors. (You set arrays at certain points as well; I suggest using ds_lists instead that can be represented by one local variable and destroyed at the end)

Edited by Agamer, 28 November 2011 - 11:36 PM.

[SkullSoft]

Thank you, some handy stuff in there!

[brac37]

These scripts are quite inefficient.
For example,

if radtodeg(argument0) mod 90 = 0
    {
    return 0 ;
    }
    
if tan(argument0) != 0
    {
    return 1/tan(argument0) ;
    }

Is inaccurate (cotan is defined at pi/2 + pi * n) and can be replaced with the much better

var s;
s = sin(argument0);
if (s != 0)
    return cos(argument0) / s;
else
    show_error('Cotangent undefined at multiples of pi.', false);

Also, many of these scripts are of dubious usefulness.

return tan(0.5*pi-argument0);