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STEM Notes
Home
Mathematics
0. Introduction
1. Exponents and Logarithms
2. Sequences and Series
3. Functions
4. Finance
5. Sets
6. Combinatorics
7. Sectors and Radians
8. Geometry
9. Trigonometry
10. Descriptive Statistics
11. Probability
12. Random Variables and Probability Distributions
13. Hypothesis Testing
14. Differentiation
15. Integration
16. Differential Equations
17. Complex Numbers
18. Vectors
19. Matrices
20. Graph Theory
21. Modelling
Appendix 1. Formula Reference
Appendix 2. Exercise Solutions
Appendix 3. References and Notes
Appendix 4. Worked Examples Template Page (TEMP)
MATH101
0. Introduction
1. Sets
2. Functions
A1. Study Skills
TEMPLATE
SCC.121
0. Introduction
1. Discrete Mathematics
A1. Study Skills
TEMPLATE
SCC.131
0. Introduction
TEMPLATE
A1. Study Skills
TEMPLATE
SCC.141
0. Introduction
A1. Study Skills
TEMPLATE
Mathematics
17. Complex Numbers
Complex Numbers
We know that $\forall x \in \mathbb{R}, x^2 \geq 0$, but let $i^2 = -1$