-
equation x 2
d 2 y
d x 2 + x
d y
d x + ( x 2 − α 2 ) y = 0 {\displaystyle x^{2}{\frac {
d^{2}y}{
dx^{2}}}+x{\frac {dy}{
dx}}+\left(x^{2}-\
alpha ^{2}\right)y=0}...
- en D9Ti gratuite" [Upgrade of the
functions of the D9 and D9Ti free].
AlphaDxD (in French). 5
January 2011.
Archived from the
original on 18 May 2022...
- _{a}^{b}{\frac {\partial }{\partial \
alpha }}f(x,\
alpha )\,
dx+f(b,\
alpha ){\frac {db}{
d\
alpha }}-f(a,\
alpha ){\frac {da}{
d\
alpha }}.} The
general form of Leibniz's...
- z )
d x ∧
d y + g ( x , y , z )
d z ∧
d x + h ( x , y , z )
d y ∧
d z ) . {\displaystyle \int _{S}(f(x,y,z)\,
dx\wedge dy+g(x,y,z)\,dz\wedge
dx+h(x,y...
- en D9Ti gratuite" [Upgrade of the
functions of the D9 and D9Ti free].
AlphaDxD (in French). 2011-01-05.
Archived from the
original on 2022-05-18. Retrieved...
- we have:
d d x ln a x =
d d x ( ln a + ln x ) =
d d x ln a +
d d x ln x = 1 x . {\displaystyle {\frac {
d}{
dx}}\ln ax={\frac {
d}{
dx}}(\ln a+\ln...
- ) ( x )
d x = α ∫ a b f ( x )
d x + β ∫ a b g ( x )
d x . {\displaystyle \int _{a}^{b}(\
alpha f+\beta g)(x)\,
dx=\
alpha \int _{a}^{b}f(x)\,
dx+\beta \int...
-
scalar α: ∫ − ∞ ∞ δ ( α x )
d x = ∫ − ∞ ∞ δ ( u )
d u | α | = 1 | α | {\displaystyle \int _{-\infty }^{\infty }\delta (\
alpha x)\,
dx=\int _{-\infty }^{\infty...
-
Friedrich Gauss, the
integral is ∫ − ∞ ∞ e − x 2
d x = π . {\displaystyle \int _{-\infty }^{\infty }e^{-x^{2}}\,
dx={\sqrt {\pi }}.}
Abraham de
Moivre originally...
- operator; for example,
d 2 y
d x 2 =
d d x (
d d x f ( x ) ) . {\textstyle {\frac {
d^{2}y}{
dx^{2}}}={\frac {
d}{
dx}}{\Bigl (}{\frac {
d}{
dx}}f(x){\Bigr )}.} Unlike...
