# Math Is Fun Forum

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## #1 2015-05-15 18:55:45

pari_alf
Member
Registered: 2013-12-01
Posts: 85

### derivative of 2D funciton by the taylor series

Hi Guys,

Today i need to understand the mathematical equation.

Below attached equation is the first derivative of 2D function, f(x+u, y+v) by the taylor series.

I need explanation that how to get it.
thank you.

Thank you

Last edited by pari_alf (2015-05-15 19:00:06)

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## #2 2015-05-15 20:07:01

Olinguito
Member
Registered: 2014-08-12
Posts: 649

### Re: derivative of 2D funciton by the taylor series

The Taylor series to the first order of f(x,y) at the point (a,b) is

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If you replace (x,y) by (x+u,y+v) and (a,b) by (x,y), you are done.

Bassaricyon neblina

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## #3 2015-05-16 03:00:21

pari_alf
Member
Registered: 2013-12-01
Posts: 85

### Re: derivative of 2D funciton by the taylor series

Hello,

Than what is the second order of f (x,y) at the point (a,b)?

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