Scratch

Say you square 3. It gives you 9 (3x3=9). 3 is the sqare route of 9. Comprendo? sqrt stands for square route.

EDIT: in case you don't get it...

64 squared=4096 ( I did that in my head, I'm proud)
What's the square route of 4096? 64. Square route is what number you square to get your number.

Last edited by coolstuff (2008-08-15 19:10:02)

Alright, I'll tell you what I know:
abs=absolute value - turns negative to positive.
sqrt=square route - you already know.
sin=sine - hard to explain, read on for link to explanation
cos=cosine - see sine
tan=tangeant - see sine
asin,acos,atan=no clue- no clue
e ^=exponent - don't know how to use but I know squares/cubes, etc. a number
10 ^=to the power of 10 (I think)
For info on Sine, Cosine, Tangeant, see http://scratch.mit.edu/forums/viewtopic.php?id=5326

Last edited by coolstuff (2008-08-15 19:17:24)

Now I think about it... How do you use 10 ^ and e ^?

Paddle2See wrote:

coolstuff wrote:

Now I think about it... How do you use 10 ^ and e ^?

You would use 10^ to raise 10 to the power of whatever number you give it.  It is the inverse of the base 10 logarithm function (log).

The e^ raises Euler's constant (pronounced "Oilers") ,which is approximately 2.718, to whatever power you give it.  It is the inverse of the natural log function (ln).

When would you use these functions?  If you were doing certain heat transfer equations...or electronics and a number of other areas.  Not something you typically need for game programming but handy for engineering.

Wow... not at all what I was thinking they did.