⁦The rules of differentiation⁩

⁦Try the power, product, quotient and chain rules on a number at one point, and check them against tangents and normals on a graph⁩.

لم يُترجَم هذا المختبر إلى هذه اللغة بعد.

الدليل

⁦Power rule⁩: (xn)′ = nxn − ١. ⁦The gradient of the tangent at a point is the derivative there⁩. ⁦The normal is perpendicular to the tangent, so its gradient is −١f′⁩.

⁦Product rule⁩: (u·v)′ = u′v + uv′. ⁦Quotient rule⁩: (uv)′ = u′v − uv′v٢. ⁦The derivative of a product is not the product of the derivatives⁩.

⁦Chain rule⁩: (f(g(x)))′ = f′(g(x))·g′(x). ⁦First the derivative of the⁩ "outside" ⁦with the inside left alone, then multiply by the derivative of the⁩ "inside".