icysamon's blog

\({\displaystyle \Delta={\frac {\partial ^{2}}{\partial…

\({\displaystyle \iint f(x,y)dxdy=\iint f(\phi (u,v),\p…

定義 任意の正の実数 \(p\), \(q\) について \(\displaystyle B(p,q)=\in…

定義 実部が正となる実数 \(s\) について \({\displaystyle \Gamma (s)=\in…

\(\displaystyle (x, \,\theta)\rightarrow (x, \,f(x)cos\…

\(\displaystyle S = \iint_D \sqrt{ 1 + \left( \frac{\pa…

\(\displaystyle\varphi'(x)=-\frac{f_x}{f_y}\) \(\displa…

\(\displaystyle D=f_{xx}(a,b)f_{yy}(a,b)-{f_{xy}(a,b)}^…

媒介変数表示 \(x=f(t),　y=g(t)\)　\((\alpha≦\theta ≦\beta)\)　のと…

\(\displaystyle \frac{d}{dx} Sin^{-1} x = \frac{1}{\sqr…