What does it mean when dx is put on the start in an integral?
31979
Notation: Why write the differential first?
20131
Integration inside and outside of NDSolve
81973
Definition of $d (P (x ,y )dx)$
153794
What is the meaning of $1/(D+a)$, where $D$ is the derivative operator?
154733
NIntegrate evaluates its 1st argument while it has the attribute HoldAll?
133851
How to arrive at $\int_{0}^{1} f^3(x) \, dx < (\int_{0}^{1} f(x) \, dx)^2$?
1626
How do we prove $\int_I\int_x^1\frac{1}{t}f(t)\text{ dt}\text{ dx}=\int_If(x)\text{ dx}$
54814
What is this symbol $\int$ called?
109192
Intuitive reason why $ \frac1j > \int_{j}^{j+1} \frac1x dx $ for $j$ < $x$
80710
Does $\int_{-1}^1 \frac 1 x dx$ equal zero?
44066
What is the meaning of the integral of position?
6892
Why is it not true that $\int_0^{\pi} \sin(x)\; dx = 0$?
83376
The underlying process of Integrate[]
75452
Initial value problem with $t$ and $x'$
125506
Why can I get two different results when calculating $\int \ln(z) \,dz$?
34565
How do I differentiate this integral?
69124
Integral $\int_{0}^{\infty}e^{-ax}\cos (bx)\operatorname d\!x$