| 4 | Volume of an n-dimensional ball | calculusmathematical analysishigher-dimensional geometry | 2000 | 1 |
| 3 | Euler's Formula from cosh(t) | complex numberstaylor serieshyperbolic functionsexponential functions | 1200 | 1 |
| 2 | Derivation of the Depressed Cubic formula | polynomial equationsalegbra | 1400 | 1 |
| 1 | Sum of cubes of 'n' integers. | sequences and seriesalgebrasummation | 800 | 1 |