Math Terms - Visually Described ?

SuperLynx · 2010-08-06 13:06:03

81=0 Mod 9 // Right or Wrong?

bobbym · 2010-08-06 13:08:08

That's right! Because when you divide 81 by 9 you have a remainder of 0.

SuperLynx · 2010-08-06 13:37:12

Alright I think I got it, although I may pop in a Modulo question with an answer to which you just answer right or wrong just so I'm sure

Lets move on

bobbym · 2010-08-06 13:57:11

Are you sure. I can show you how to calculate them, so you won't have to guess.

SuperLynx · 2010-08-06 22:48:19

I wasn't guessing If you want to show me you're method you can !

bobbym · 2010-08-07 07:35:56

For 23 mod 6 you take and divide 23 by 6. You get 3.83333333. Now you use the floor function to turn 3.8333333333 into 3. 23 - ( 3 * 6 ) = 5. So

This will work for the simple types we are doing.

SuperLynx · 2010-08-07 07:51:58

How did you get 3.23 from 3.83 ?

bobbym · 2010-08-07 08:02:59

Hi Superlynx;

function to turn 3.8333333333 into 3. 23 - ( 3 * 6 ) = 5. So

That is a good one! It is not 3.23, it is 3 period. That is not a decimal point. Next sentence 23 - ( 3 * 6 ) = 5

SuperLynx · 2010-08-07 09:27:49

I think I understand throw me another question Then lets move on

bobbym · 2010-08-07 09:30:46

Okay,

SuperLynx · 2010-08-07 09:45:27

1237=19 Mod 29
Correct or Wrong ?

bobbym · 2010-08-07 09:47:20

Kayrect! You are growing stronger with the force, just don't turn to the dark side.

SuperLynx · 2010-08-07 10:27:12

I won't, the force is over powering the dark side

bobbym · 2010-08-07 10:28:28

Okay, pose your next question.

SuperLynx · 2010-08-07 10:33:45

How does a 3x3 and a 4x4 matrix work in the world of X,Y,Z ?

bobbym · 2010-08-07 10:50:27

Hi Superlynx;

That is a very general question. We represent X,Y,Z coordinates in 3 x 3 and rotate them around using Jacobian transformations. You need to have a much smaller question. A much more precise one. What you asked for is many many books.

SuperLynx · 2010-08-07 10:59:10

How would you translate a sphere on the Y based on the rotation of a cube on the X ?
I hope that is more precise, otherwise I have to think on this

bobbym · 2010-08-07 11:41:07

That is not a simple operation. I am not really that knowledgeable on computer graphics since I have not programmed a game in a long time.

SuperLynx · 2010-08-07 11:45:16

How does Clamp work ?

bobbym · 2010-08-07 15:59:37

Hi SuperLynx;

I only know one usage for clamp. It is a math function implemented in some languages.

If number < = low return low

If number > = high return high
else return number.

clamp( number, low, high )

clamp( 21, 2 , 10 ) returns 10

clamp( 11, 5, 17 ) returns 11

Clamp does just that it makes sure a value stays between high and low.

SuperLynx · 2010-08-08 03:18:23

ball.local.posy=MAX( MIN( box.local.posy, 723 ), -500 )

This Clamp is saying clamp the ball between 723 on the Y position MIN and -500 on the Y position MAX?

bobbym · 2010-08-08 09:04:16

Hi SuperLynx;

Yes, you are clamping the values between [ -500, 723 ]

SuperLynx · 2010-08-09 00:13:09

I need to figure out Matrix, arrrgh.

SuperLynx · 2010-08-09 01:09:53

How can I, I need to understand it.

bobbym · 2010-08-09 06:42:13

Hi SuperLynx;

A matrix is a box or rectangular array of numbers. It is the operations that you perform on the matrix that are important. Here is what one looks like.

Notice they are labeled using capital letters,

Math Is Fun Forum

#26 2010-08-06 13:06:03

Re: Math Terms - Visually Described ?

#27 2010-08-06 13:08:08

Re: Math Terms - Visually Described ?

#28 2010-08-06 13:37:12

Re: Math Terms - Visually Described ?

#29 2010-08-06 13:57:11

Re: Math Terms - Visually Described ?

#30 2010-08-06 22:48:19

Re: Math Terms - Visually Described ?

#31 2010-08-07 07:35:56

Re: Math Terms - Visually Described ?

#32 2010-08-07 07:51:58

Re: Math Terms - Visually Described ?

#33 2010-08-07 08:02:59

Re: Math Terms - Visually Described ?

#34 2010-08-07 09:27:49

Re: Math Terms - Visually Described ?

#35 2010-08-07 09:30:46

Re: Math Terms - Visually Described ?

#36 2010-08-07 09:45:27

Re: Math Terms - Visually Described ?

#37 2010-08-07 09:47:20

Re: Math Terms - Visually Described ?

#38 2010-08-07 10:27:12

Re: Math Terms - Visually Described ?

#39 2010-08-07 10:28:28

Re: Math Terms - Visually Described ?

#40 2010-08-07 10:33:45

Re: Math Terms - Visually Described ?

#41 2010-08-07 10:50:27

Re: Math Terms - Visually Described ?

#42 2010-08-07 10:59:10

Re: Math Terms - Visually Described ?

#43 2010-08-07 11:41:07

Re: Math Terms - Visually Described ?

#44 2010-08-07 11:45:16

Re: Math Terms - Visually Described ?

#45 2010-08-07 15:59:37

Re: Math Terms - Visually Described ?

#46 2010-08-08 03:18:23

Re: Math Terms - Visually Described ?

#47 2010-08-08 09:04:16

Re: Math Terms - Visually Described ?

#48 2010-08-09 00:13:09

Re: Math Terms - Visually Described ?

#49 2010-08-09 01:09:53

Re: Math Terms - Visually Described ?

#50 2010-08-09 06:42:13

Re: Math Terms - Visually Described ?

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