### There are 5 results

Broad Topics >

Calculus > Complex analysis

##### Age 16 to 18 Challenge Level:

Put your complex numbers and calculus to the test with this
impedance calculation.

##### Age 14 to 16 Challenge Level:

Arrow arithmetic, but with a twist.

##### Age 14 to 16 Challenge Level:

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.

##### Age 14 to 16 Challenge Level:

Introduces the idea of a twizzle to represent number and asks how
one can use this representation to add and subtract geometrically.

##### Age 14 to 16 Challenge Level:

How can you use twizzles to multiply and divide?