Learn all of maths, in order.

From counting to the open problems. Pick where you are; every lesson shows its steps, draws the picture, and hides the answer until you ask.

  1. 1 Arithmetic 4 lektioner
  2. 2 Algebra 11 lektioner
  3. 3 Geometry 6 lektioner
  4. 4 Trigonometry 4 lektioner
  5. 5 Precalculus 7 lektioner
  6. 6 Calculus 7 lektioner
  7. 7 Linear Algebra 5 lektioner
  8. 8 Statistics & Probability 15 lektioner
  9. 9 Discrete Math & Logic 2 lektioner
  10. 10 Number Theory 7 lektioner
  11. 11 Differential Equations 5 lektioner
  12. 12 Analysis 5 lektioner
  13. 13 Frontiers 6 lektioner

Or bring your own problem

Type it, or draw it with your mouse or finger. Equations, derivatives, matrices, triangles, primes — or a word problem the tutor breaks into parts.

What each stage covers

Var och en är en uppsättning lektioner med ett levande, fungerande exempel, ett visuellt och en lösare som är inställd på det.

Stage 1 Arithmetic Numbers, fractions, percentages and the order of operations. Stage 2 Algebra Equations, inequalities, factoring, functions and systems. Stage 3 Geometry Triangles, circles, polygons, solids and coordinates. Stage 4 Trigonometry Angles, the unit circle, identities and trig equations. Stage 5 Precalculus Functions in depth, complex numbers, sequences, conics and vectors. Stage 6 Calculus Limits, derivatives, integrals, series and optimisation. Stage 7 Linear Algebra Matrices, determinants, inverses, row reduction and eigenvalues. Stage 8 Statistics & Probability Averages, spread, counting and probability. Stage 9 Discrete Math & Logic Counting, logic, truth tables, sets and proof. Stage 10 Number Theory Primes, divisibility, gcd, modular arithmetic and sequences. Stage 11 Differential Equations Equations whose unknown is a function: growth, oscillation, and how physics is written. Stage 12 Analysis Limits made rigorous: sequences, series, convergence, improper integrals, complex numbers as functions. Stage 13 Frontiers The open problems — Riemann, Navier–Stokes, P vs NP — broken into what you need to even read them.

Hur det fungerar

1

Type it or draw it

“derivative of x² sin x”, “is 561 prime”, “triangle 3 4 5” — or sketch the equation on the pad and it is read for you.

2

Titta på varje rörelse

En regel per steg – produktregeln, en radoperation, en Euclid-division – animerad och förklarad i en mening.

3

Se formen på den

Kurvor med sina rötter markerade, ytor kan du rotera, trianglar dras till skala, faktor träd, matriser som vektorer i rymden.

4

De omöjliga också

Ett ordproblem, ett bevis, en öppen fråga: läraren bryter det i delar som du kan attackera, berättar vad som är känt och döljer lösningen tills du vill ha den.