Complex analysis

There are 2 NRICH Mathematical resources connected to Complex analysis
Impedance can be complex!
problem

Impedance can be complex!

Age
16 to 18
Challenge level
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Put your complex numbers and calculus to the test with this impedance calculation.
Arrow Arithmetic 1
problem

Arrow Arithmetic 1

Age
14 to 16
Challenge level
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The first part of an investigation into how to represent numbers using geometric transformations that ultimately leads us to discover numbers not on the number line.