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funnytomato

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the <a href="http://www.codecogs.com/eqnedit.php?latex=\delta" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\delta" title="\delta" /></a> is just delta which means "change in" in greek. I thought it was the "correct" letter to be used and people just used d for ease? or am i wrong?

this is the partial derivative symbol <a href="http://www.codecogs.com/eqnedit.php?latex=\partial" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\partial" title="\partial" /></a><a href="http://www.codecogs.com/eqnedit.php?latex=\partial" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\partial" title="\partial" /></a>

i think OP thought your method was 'complicated' , probably due to this?
 

seanieg89

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The symbol should not be used here. The 'd' is standard and is connected to things like the variation of a functional.

It is more common to write to denote the difference quotient of a function though, and in this case we have:

.
 
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nightweaver066

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The symbol should not be used here. The 'd' is standard and is connected to things like the variation of a functional.

It is more common to write to denote the difference quotient of a function though, and in this case we have:

.
I've always thought lower case delta was used for smaller changes and upper case delta for larger changes lol.
 

barbernator

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I've always thought lower case delta was used for smaller changes and upper case delta for larger changes lol.

First Class Honours (Pure Mathematics) at USYD
, prepare to be destroyed with mathematical knowledge..
 

barbernator

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split into partial fractions and integrate. (x-3)-4/(x-2)
 

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