**Downloads:**

Discover time in terms of seconds, minutes, hours, days and weeks…

– **Time in numbers** (Downloadable text file)

Practice your times tables…

– **Times Tables Tester (Original)** (PDF file – Printable)

Have you been given logarithmic formulas without being told why they make sense? This file will demonstrate why the logarithmic formulas we use are logically coherent.

– **Logarithmic Realms – Brilliant Logarithmic Proofs** (PDF Document – Printable)

Learn how to derive the 3 main cosine rule formulas using a wonderful diagram, SOH CAH TOA, Pythagoras’s theorem and two trigonometric identities.

– **Cosine Rule Mastery** (PDF Document – Printable)

Derive the formulas for areas of triangles from absolute scratch…

**– Areas of triangles formulas** (HTML Document – Printable)

Learn how to derive the sine rule formula in simple steps, using both Pythagoras’s theorem and two trigonometric identities.

– **Sine Rule Mastery** (PDF Document – Printable)

Derive the formula for an ellipse from first principles.

– **Deriving the formula for an ellipse** (HTML Document – Printable)

More complex trigonometric identities.

– **trig_proofs_sept_16** (zip file)

Derive the formula for ellipsoids from scratch, both normal and parametric.

– **ellipsoid_formula_proofs** (zip file)

Derive the formula for a torus from scratch, both normal and parametric.

– **torus_formula_proofs** (zip file)

Derive the area of a pentagon from absolute scratch.

– **area_of_a_pentagon** (zip file)

Derive the volume of a sphere using the circle equation and also the volumes of revolution formula.

– **volume_of_a_sphere_proof** (zip file)

Derive the formula which can be used to find the area of an ellipse, from absolute scratch….

**– area_of_an_ellipse** (zip file)

Derive the formula for the area of a circle, using integration and differentiation…

– **area_of_a_circle** (zip file)

Derive the volume of a cone from scratch…

– **volume_of_a_cone** (zip file)

Google + Community Proofs & Images (418 MB of data, 23.10.16 backup)

–** https://drive.google.com/file/d/0B-JdohImMpvmUC0wWlVFOHg2NDg/view **(zip file)

Freethinkers, scientists and influential individuals – selected by our contributors. Some controversial.

– **http://mathsvideos.net/freethinkers-scientists-and-influential-individuals/**

Weekly rent vs monthly rent graph and chart for students.

– **http://mathsvideos.net/weekly-vs-monthly-rent-chart-and-graphs-for-uk-students/**

Factorials Table (0! to 10!)

– **http://mathsvideos.net/factorials-table-0-10/**

Mathematical Singularity Proof (Seen in Movies):

– **singularity_formula_proof** (zip file)