New posts in Partial Derivative

Taking the derivative of a differential equation

Double Sequences solving method

How much rigour is this proof of multivariable chain rule?

Change of variables and the partial derivative

Maximizing $f$ in $\mathbb{R}^3$

How did Einstein integrate $\frac{\partial \tau}{\partial x'}+\frac{v}{c^2-v^2}\frac{\partial \tau}{\partial t}=0$?

Can directional derivatives be written as linear combination of partial derivatives even if f is not differentiable?

Studying the extrema of $f(x,y) = x^4 + y^4 -2(x-y)^2$

How to calculate $\dfrac{\partial a^{\rm T}A^{-\rm T}bb^{\rm T}A^{-1}a}{\partial A}$?

Why is any arbitrary directional derivative always recoverable from the gradient?