Can MEL be used to perform math equations

[mduvekot]

sure..

first you'd declare a procedure, like this:

proc float myProc (float $D, float $A) {
if ($A == 0) { error "Cannot divide by zero\n";}
return 2 * sqrt($D/$A);
}

If you save the procedure to one of the directories in the MAYA_SCRIPT_PATH, under the same name as the procedure, you can use it without having to declare it first, as Maya does it for you. In this example, I would save the code to myProc.mel in one of the script folders that I can find with

getenv MAYA_SCRIPT_PATH;

and then you can run your code:

myProc 2 3;
// Result: 1.632993 //

[NaughtyNathan]

of course you can do this kind of thing, it's practically the base functionality of all programming/scripting languages! :)

it's also very easy, if fact it's almost exactly the same in python as you've written it out:

# python
from math import sqrt
D = 0.5
A = 3.14
T = 2 * sqrt( D/A )and here's how it would look in MEL seeing as how that's what you asked for:

// MEL:
float $D = 0.5;
float $A = 3.14;
float $T = 2 * sqrt($D/$A);
:nathaN

[thegarland]

Thanks a lot, guys! Both methods worked great.

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