Masomo
Every lesson is free to read. A course adds a quiz at the end of each unit, a final exam that is marked and then checked by a person, and feedback that shows the line where your working went wrong.
Discrete Mathematics
Logic, proof, induction, relations, counting, recurrences, graphs, automata and complexity: the discrete maths of a first university course.
CollegeCalculus
Limits, derivatives, integrals and series: the single-variable calculus of a first university course.
GraduatePartial Differential Equations
Transport, heat, wave and Laplace equations, Fourier methods, energy and maximum principles, weak derivatives, Sobolev spaces, well-posedness and scaling.
GraduateFluid Dynamics
From the continuum hypothesis to the regularity theory of the incompressible Navier-Stokes equations.
Jinsi mwendo unavyofanya kazi
- Soma masomo hayo kwa utaratibu na masomo ya bure kama yale mengine ya mahali hapo, yaliyounganishwa katika visehemu.
- Jaribu kufanya uchunguzi mwishoni mwa kila sehemu, na ufanyiwe uchunguzi kwa kutumia njia nzuri.
- Njiani kila sehemu na weka rekodi ya mwisho. Majibu ya mfumo wa aljebra yaweza kukaguliwa; ithibati na picha zilizoandikwa za kazi yako husomwa na kiolezo kisha hupitiwa na mtu kabla ya matokeo yako kutolewa.
- Kokote ulikoenda vibaya, matokeo yaonyesha mahali ulipotokea na kwa nini.
Bei
Mwendo unapita
$39
Kila tafiti, mtihani wa mwisho wenye kufanyiwa tena jambo moja, na uchunguzi 20 wa kazi yako mwenyewe, kwa mtaala mmoja.
Mtihani mmoja wa mwisho
$15
Kiti kimoja cha mwisho cha mtaala mmoja, kilitia alama na kupitiwa.
Kila jambo
$19/mo
Kila mmoja huulizwa maswali na kumaliza katika kila mtaala (humaliza vipindi viwili kwa mwezi) na hundi 100 za kazi kwa mwezi.
print operation statusUchunguzi wa kazi
$9
Uchunguzi kumi: Pakua picha ya mtu yeyote anayefanya kazi, au chora aina yake, uone mahali ilipoharibika.
Nunua hundi kumi