$\displaystyle z = x + yi$

What is the uses of modulus of , $\displaystyle r$ and arg , θ in an Argand diagram?

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- Jan 7th 2008, 01:52 AMSengNeeArgand Diagram
$\displaystyle z = x + yi$

What is the uses of modulus of , $\displaystyle r$ and arg , θ in an Argand diagram? - Jan 7th 2008, 03:42 AMbadgerigar
$\displaystyle (r, \theta)$ are the polar coordinates of z

- Jan 7th 2008, 09:23 PMSengNee
What is polar coordinate?

- Jan 7th 2008, 09:42 PMJhevon
- Jan 8th 2008, 12:52 AMSengNee
I know that:

r=|z|=length of z

$\displaystyle \theta$=the angle this line makes with the positive real-axis

I ask about what their uses, how we apply them to solve our daily problems? - Jan 8th 2008, 01:29 AMbadgerigarQuote:

how we apply them to solve our daily problems?

- Jan 8th 2008, 07:59 AMThePerfectHacker