| The Modulo Operator
MPEG4 /
OGG This is an old and longer version of the video on the modulo operator. I think it is too long, and therefore it has been superseded, but it does offer a different angle. Watch it if you find it useful. |
12:36 | p. 90-93 | p. 293 | |
| Elaboration on modular arithmetics | Time | Slides | Stein et al | Rosen |
|---|---|---|---|---|
| Modular addition MPEG4 / OGG | 5:37 | p. 95-99 | p. 243+ | |
| Modular multiplication and rings MPEG4 / OGG | 7:26 | p. (95-)98-101 | p. 243+ | |
| Modular Subtraction MPEG4 / OGG | 4:14 | ?? | ?? | |
| More on modular arithmetics | Time | Slides | Stein et al | Rosen |
| Multiplicative Inverses MPEG4 / OGG | 10:55 | pre-slides post-slides |
p. 105-109 | p. 273-275 |
| The Affine Cipher MPEG4 / OGG | 14 min. | N/A | p. 293 | |
| Rings MPEG4 / OGG This video elaborates on modular arithmetics by introducing rings. This should make sense at this stage of the syllabus, and was given at this stage in previous years. This year we shall focus on practicing the modular arithmetics first, and introduce rings when we get to finite fields later on. | 13:21 | p. 98-101 | p. 808+ |