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Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion


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January 11th, 2017, 06:52 AM   #1
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Why can't I read math?

How can I learn how to read this.
I don't even understand how the comma symbol is being used.
Is this an array? Like in javascript?

Pi,3-Pi,0 = kv
P3,j-P0,j = ku
Pi,1-Pi,0 = Pi,3-Pi,2
P1,j-P0,j = P3,j-P2,j
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January 11th, 2017, 08:45 AM   #2
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Where did you see the equations?
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January 11th, 2017, 08:49 AM   #3
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Quote:
Originally Posted by skipjack View Post
Where did you see the equations?
Someone was helping me with figuring out how to make a bezier surface "loop around".

I needed a bezier's surface's left side to match the height of the bezier's edge on the right so that several copies of the bezier surface in a row would be continuous.
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January 22nd, 2017, 05:09 AM   #4
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Quote:
Originally Posted by InkSprite View Post
How can I learn how to read this.
I don't even understand how the comma symbol is being used.
Is this an array? Like in javascript?

Pi,3-Pi,0 = kv
P3,j-P0,j = ku
Pi,1-Pi,0 = Pi,3-Pi,2
P1,j-P0,j = P3,j-P2,j
These should be written
P(i,3)- P(i,0)= kv
P(3,j)- P(0,j)= ku
P(i,1)- P(i,0)= P(i,3))- P(i,2)
P(1,j)- P(0,j)= P(3,j)- P(2,j).

In other words, those numbers are (integer valued) variables in the function P. Yes, that gives an array.
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