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

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

Fiecare dintre ele este un set de lecții cu un exemplu lucrează live, un vizual și un solutor sintonizat pentru ea.

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.

Cum funcţionează

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

Priveşte fiecare mişcare.

O regulă pe pas — regula produsului, operaţiunea rândului, o divizie Euclid — animată şi explicată într-o propoziţie.

3

Vezi forma ei

Curve cu rădăcinile marcate, suprafeţele puteți roti, triunghiuri trase la scară, factor copaci, matrici ca vectori în spațiu.

4

Cei imposibili

O problemă de cuvânt, o dovadă, o întrebare deschisă: tutorul îl rupe în părţi pe care le poţi ataca, vă spune ce este cunoscut, şi ascunde soluţia până când o vrei.