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#### Resources tagged with Argand diagram similar to Two and Four Dimensional Numbers:

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##### Other tags that relate to Two and Four Dimensional Numbers
Quaternions. Maths Supporting SET. Argand diagram. Vectors. Complex numbers. Interactivities. Quadratic equations. Matrices. Sine, cosine, tangent. Reflections.

### Complex Rotations

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

Choose some complex numbers and mark them by points on a graph. Multiply your numbers by i once, twice, three times, four times, ..., n times? What happens?

### An Introduction to Complex Numbers

##### Age 16 to 18

A short introduction to complex numbers written primarily for students aged 14 to 19.

### Conjugate Tracker

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

Make a conjecture about the curved track taken by the complex roots of a quadratic equation and use complex conjugates to prove your conjecture.

### Cube Roots

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

Evaluate without a calculator: (5 sqrt2 + 7)^{1/3} - (5 sqrt2 - 7)^1/3}.