# Countour integral of z from 0 to 1+2i

## Homework Statement

evaluate contour integral Z dz from 0 to 1+21 in the curve of y=2x

## Answers and Replies

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Dick
Homework Helper

## Homework Statement

evaluate contour integral Z dz from 0 to 1+21 in the curve of y=2x
So what exactly is your problem here? I can think of two ways to do this. Parametrize the curve or use the complex antiderivative. Both are easy. Do something!

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So what exactly is your problem here? I can think of two ways to do this. Parametrize the curve or use the complex antiderivative. Both are easy. Do something!
ok,i try to solve for integrate z dz= x+iy(dx+idy) and get dy dx from y=2x.and i get the answer for integrate z dz,
how about the answer for integrate complex conjugate of z? since complex conjugate of z is not analytical .can i do it in the same way oso?

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Dick