Does $f(x)\,dx$ denote multiplication of $f(x)$ by $dx$?
8408
What is $dx$ in integration?
82659
How to write $\delta (f(x))$ in terms of $\delta (x)$?
49705
Is $f(x,y)=(x+2y+y^2+|xy|, 2x+y+x^2+|xy|)$ differentiable?
104394
What does $\int_{a}^{b} f(x)$ mean?
49408
Proof of the derivative of ln(x)
43956
Differentiating $f(x)^{g(x)}$
144222
If $f(x + 1) + f(x − 1) = f(x), \forall x \in \mathbb{R}$,then how to find $k$ such that $f(x + k) = f(x)$?
124121
Is this logic behind the derivative of $x^x$ a coincidence?
157426
Proving that:$\int_X f_n g \, d\mu \to \int_X fg \, d\mu$ for all $g$ in $\mathscr{L}^q (X)$
138544
For which values of $x$, will $f (x) . f '(x) < 0$?
56413
$f(g(x))=g(f(x))$ implies $f(c)=g(c)$ for some $c$
10606
Finding how multiplication and addition behave on $\mathbb{F}_4$ without any result
138481
$f(x)=x/1$ is not injective?
106830
are $f(f(x))=f(x)$ and $f(x)=x$ equivalent?
36954
What does the construct f[x_] := f[x] = ... mean?
158520
Derivative of Fourier transform: $F[f]'=F[-ixf(x)]$
66772
$f(f(x)f(y))+f(x+y)=f(xy)$