Ili donesi svoj problem.

Ukucajte, ili ga nacrtati mišem ili prstom. Equations, derivati, matrice, trokuti, prvobitni – ili riječ problem učitelj razbija na dijelove.

Otvori stranicu za puno rješavanje →

Što besplatni račun dodaje: vaš radni knjiga

  • Bilješke na svakoj lekciji, spremljene dok kucate
  • Rekord lekcija koju ste završili, i gdje pokupiti
  • Svaki problem koji riješiš, koji se drži na jednom mjestu
  • Učiteljica na svakoj lekciji za pitanja o toj stranici
  • Postavljanje i odgovor na ploču za pomoć

Svaka lekcija, radni primjer i rješavač ostati otvoren bez računa.

Prijavi se Pogledajte radnu knjigu

Što pokriva svaka faza

Svaka od njih je skup lekcija s živo djelovanim primjerom, vizualnim i rješavačem koji je nadograđen za to.

Stanje 1 · school Arithmetic Numbers, fractions, percentages and the order of operations. Stanje 2 · school Algebra Equations, inequalities, factoring, functions and systems. Stanje 3 · school Geometry Triangles, circles, polygons, solids and coordinates. Stanje 4 · school Trigonometry Angles, the unit circle, identities and trig equations. Stanje 5 · school Precalculus Functions in depth, complex numbers, sequences, conics and vectors. Stanje 6 · school Statistics & Probability Averages, spread, counting and probability. Stanje 7 · school Discrete Math & Logic Counting, logic, truth tables, sets and proof. Stanje 8 · college Calculus Limits, derivatives, integrals, series and optimisation. Stanje 9 · college Linear Algebra Matrices, determinants, inverses, row reduction and eigenvalues. Stanje 10 · college Number Theory Primes, divisibility, gcd, modular arithmetic and sequences. Stanje 11 · college Differential Equations Equations whose unknown is a function: growth, oscillation, and how physics is written. Stanje 12 · college Multivariable Calculus Partial derivatives, gradients, multiple integrals, vector fields. Stanje 13 · college Real Analysis Limits made rigorous: sequences, series, convergence, improper integrals, complex numbers as functions. Stanje 14 · college Combinatorics & Graph Theory Counting, generating functions, graphs, trees, colourings and networks. Stanje 15 · college Set Theory & Logic Sets, relations, functions, cardinality, proof and the foundations of mathematics. Stanje 16 · college Abstract Algebra Groups, rings, fields: symmetry made into structure. Stanje 17 · college Probability Theory Random variables, distributions, expectation, limit theorems. Stanje 18 · college Numerical Methods Root finding, approximation, numerical integration and error. Stanje 19 · college Complex Analysis Holomorphic functions, contour integrals, residues, the rigidity of the complex plane. Stanje 20 · graduate Topology Open sets, continuity, compactness, connectedness: geometry without distance. Stanje 21 · graduate Measure Theory Lebesgue measure and integral, σ-algebras, convergence theorems. Stanje 22 · graduate Functional Analysis Banach and Hilbert spaces, operators, spectral theory. Stanje 23 · graduate Differential Geometry Curves, surfaces, curvature, manifolds: the language of general relativity. Stanje 24 · graduate Algebraic Topology Fundamental groups, homology: counting holes with algebra. Stanje 25 · graduate Category Theory Objects, arrows, functors, universal properties: mathematics about mathematics. Stanje 26 · graduate Partial Differential Equations Heat, waves, potentials and transport: Fourier methods, energy estimates, Sobolev spaces and scaling. Stanje 27 · graduate Fluid Dynamics Continuity, vorticity, the Euler and Navier-Stokes equations, and what is proved about them. Stanje 30 · research Frontiers The open problems (Riemann, Navier-Stokes, P vs NP) broken into what you need to even read them.

Kako to radi

1

Ukucaj ili nacrtaj.

“proizvodljiva x2 sin x”, “je 561 prim”, “triangle 3 4 5” – ili skicirati jednadžbu na podlošku i to je pročitano za vas.

2

Gledaj svaki potez.

Jedno pravilo po koraku (proizvodno pravilo, operacija reda, Euclid division) animirana, i objašnjena u rečenici.

3

Pogledajte oblik

Krive s korijenima označenim, površine možete rotirati, trokuti crtež na skali, faktor drveće, matrice kao vektori u svemiru.

4

I one nemoguće.

Riječni problem, dokaz, otvoreno pitanje: učitelj ga razbija na dijelove možete napasti, govori vam što je poznato, i skriva rješenje dok ga ne želite.