dx being used as a regular variable.
3360
Is $\frac{\textrm{d}y}{\textrm{d}x}$ not a ratio?
21813
Symbolic derivatives are being calculated numerically
72702
Estimate on the derivative at fixed point
96610
Using the actual subscript as a variable within thecontext of definitions using the Notation package and Symbolize
154596
When should \cdot be used to indicate multiplication?
93521
Why is the expected value (mean) of a variable written using square brackets?
17928
How to prove the following expression does not depend on x?
132141
Help understanding Simplex Noise
68215
Proper use of arbitrary number of variables
47432
Change of Variables in Limits (Part 1)
114179
If $Var(X)=0$ then is $X$ a constant?
54567
Multivariable limit - perhaps a trickier problem I am stuck on.
75394
Why is the $dx$ right next to the integral sign in QFT literature?
25913
Is writing $dx^2$ same as writing $d(x^2)$ in calculus
33278
$\delta$ differential notation
24545
A doubt regarding change of variables in Double Integrals.
79822
Problems with partial derivatives.