Hi Everyone,(adsbygoogle = window.adsbygoogle || []).push({});

I was studying coordinate transformation and I came across this equation, that I couldn't understand how it came up. Let me put it this way:

x = rcosθ

Then if I want to express the partial derivative (of any thing) with respect to x, what would be the expression? i.e. ∂/∂x=?

According to the text, answer would be

∂/∂x=cosθ*∂/∂r - (sinθ/r)*∂/∂θ

Please explain to me how to come up with this expression.

Thnaks

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Help me with this

Loading...

Similar Threads - Help | Date |
---|---|

I Need a help in solving an equation (probably differentiation | Nov 20, 2017 |

A Please help with 2-variable partial differential equation | Nov 4, 2016 |

A Need help with a differential equation | Oct 9, 2016 |

A Help solving non-linear ODE analytically | Sep 8, 2016 |

I Need help with a derivative solution | Aug 28, 2016 |

**Physics Forums - The Fusion of Science and Community**