The arithmetic every student of trading should be able to do by hand: sizing, expectancy, and drawdown recovery.
£12 one-off · yours forever
| Sizing examples | Position-size formula with fully worked examples. Every figure illustrative / SYNTHETIC. |
| Drawdown math | Why recoveries are asymmetric: the recovery formula with illustrative inputs. |
| Journal template | A trade journal layout with one SYNTHETIC example row; print and reuse. |
| README + Licence | How to use the files; personal use only, no redistribution. |