diff of order n around a point x0

1 次查看(过去 30 天)
Hello,
I would like to calculate the derivative of order n of function f with respect to x aaround a point x0.
diff(f,x,x0,n) but doesn't work
Any help!!
Thank you in advance.
Adam

采纳的回答

Wayne King
Wayne King 2012-8-3
Do you have the Symbolic Toolbox and an expression for your function?
syms t
x = cos(2*t);
y = diff(x,2)
subs(y,0) %evaluate the 2nd derivative at t=0
  1 个评论
adam
adam 2012-8-3
编辑:adam 2012-8-3
Hello, Thank you for your answer. Yes, I have the symbolic toolbox.
I would like make sum of diff(x) for exemple for order n going from 0 to 5. I tried:
{symsum(diff(x,n), n, 0, 5)}
it dipalys an error. Thank you in adavance. Good day, Aam

请先登录,再进行评论。

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Assumptions 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by