Math Symbol Question

[Monsterous]

My apologies if this is the wrong place to post :3

Now, im trying to find a symbol which states "otherwise". Im trying to do an if/then/else argument for a formulae, and i have the if and then parts, just not the else part.
If there is no symbol, or if its easier, can i have the therefore symbol, and a not equal symbol next to it? (The same with the if symbol, so if not equal i suppose.)
If anyone can enlighten me, do tell :3

 

[Sevion]

In logic gates:

However, that's an image

It means "does not imply".

Not (equal) is usually displayed with an equal sign that has a slash through it.

 

[azareus]

Not equal to is a = with a / over.
You can find it in the MS Letter overview thingy.

 

[Andrewgosu]

You can do the following, if you want to write a function with conditions:

(Yes, you can use the word "if", as weird as it seems)

 

[Sintoras]

You can do the following, if you want to write a function with conditions:

(Yes, you can use the word "if", as weird as it seems)

Though in this case you'd just define the function as being in the realm of the real numbers between 0 and positive infinity for example.

Could you give me a concrete example of where you'd use that, Monsterous?

 

[Monsterous]

No worries dear lad - problems solved :3