So this is an ultra basic question, but I'm rusty with parametrization techniques and wanted to make sure I was doing this correctly. Let's say I want to evaluate [tex]\int_{\gamma} z \: dz[/tex] where [tex]\gamma : [a,b]\rightarrow \mathbb{C}[/tex] is some path of integration. Now, I figure I can parametrize the curve and apply the definition of complex integration to arrive at the following: [tex]\gamma(t) = x(t) + iy(t) \quad \text{so} \quad \int_{\gamma} z \: dz = \int_a^b \gamma(t) \gamma(t)' \: dt = \int_a^b (x(t)+iy(t))(x'(t)+iy'(t)) \: dt[/tex] and distribute from there. Again, I know this is a very basic question, and I'm pretty sure it's correct, but it's been a while so I wanted to make sure I wasn't making some silly logical error (quite possible). Thanks.(adsbygoogle = window.adsbygoogle || []).push({});

**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!

# Parametrizing Complex Line Integral

Loading...

Similar Threads - Parametrizing Complex Line | Date |
---|---|

I Area ellipse: parametric form, angles and coincidences | Mar 9, 2017 |

I Second derivative of a curve defined by parametric equations | Mar 1, 2017 |

I Surface parametrization and its differential | Jan 29, 2017 |

I Contour integration - reversing orientation | Oct 5, 2016 |

Parametric definition for a complex integral | Mar 13, 2012 |

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