Comments on: UCT MAM1000 lecture notes part x – summary

By: Jonathan Shock

Jonathan Shock — Fri, 16 Oct 2015 09:43:16 +0000

Good spot! Thanks.

By: Azhar Rohiman

Azhar Rohiman — Fri, 16 Oct 2015 09:36:54 +0000

When finding the real part of (1- sqrt(3))^31, you wrote sqrt(2) instead of 2. And in the last example, when using the quadratic formula to find z. I think you missed a -sqrt(2) and wrote -2 instead.

RHMMUH005

By: Mathemafrica - UCT MAM1000 lecture notes subject list

Mathemafrica - UCT MAM1000 lecture notes subject list — Sat, 03 Oct 2015 11:05:29 +0000

[…] MAM1000 lecture notes – Complex numbers summary […]

By: Jonathan Shock

Jonathan Shock — Mon, 07 Sep 2015 14:22:45 +0000

Think about having e^z=-1.

The modulus of this is 1 and the argument is i\pi+2 n \pi i, so we can write -1=1 e^{i\pi+2n\pi i}. This is where the factor comes from. Does this make sense?

By: Rohin Jain

Rohin Jain — Mon, 07 Sep 2015 13:36:09 +0000

For the second last problem. When you convert to mod arg form. I don’t understand where the i times pi comes from. Please explain