What's $dy$ and $dx$, in differential equations?
31273
What does $dx$ mean?
25598
What is i(t) from circuit with differential equation?
88107
How to solve this differential equation analytically?
121547
Differential equation for Harmonic Motion
153158
how to get $dx\; dy=r\;dr\;d\theta$
6843
Explain $\iint \mathrm dx\,\mathrm dy = \iint r \,\mathrm \,d\alpha\,\mathrm dr$
8711
Problems in the relation $a=v\frac{\mathrm{d}v}{\mathrm{d}x}$
149575
Order and degree of a differential equation
101394
Please explain the logic behind $d(xy) = y(dx) + x(dy)$
116946
Ordinary differential equation $y'(t)=\sin(f(t,y))$
33691
Confusion about a particular differential form being exact?
36302
How to solve differential equations of the form $f'(x) = f(x + a)$
48050
Notation problem in integration: write $dx$ or ${\mathrm{d}}x$?
51817
Linear vs nonlinear differential equation
73099
Why is $d(x^2)= 2xdx$?
158938
Using DSolve to solve for x[t,parameter]
38894
Solve $x=y\frac{dy}{dx}-\left(\frac{dy}{dx}\right)^{2}$