| Mathematics | Complex Numbers |
 | Conversion of Complex Numbers |
 a + jb >>> r∠θ and r(cosθ + jsinθ) |
 r∠θ or r(cosθ + jsinθ) >>> a + jb |
 a + jb >>> rejqπ |
 rejqπ >>> a + jb |
| Engineering | Physics | Switches | Number Base S. | Motion | Mechanics |
| Single Phase A.C. | E. Equivalence | Electrostatics | Linear Algebra | Electric Field | Gas Laws |
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