I need to define
$y1(k)=\frac{y_{k+1}-y_{k-1}}{2*h}$
in sage so that sage can differ between symbolic $$y_{k+1}$$ and $$y_{k}$$.
Would somebody please help?
Revision history [back]
 | 1 | initial version |
How to define finite difference approximation for first order derivative
| | 2 | No.2 Revision |
How to define finite difference approximation for first order derivative
I need to definedefine $$y1(k)=\frac{y_{k+1}-y_{k-1}}{2*h}$$
$y1(k)=\frac{y_{k+1}-y_{k-1}}{2*h}$
in sage so that sage can differ between symbolic $$y_{k+1}$$ and $$y_{k}$$.
Would somebody please help?
| | 3 | retagged |
How to define finite difference approximation for first order derivative
I need to define $$y1(k)=\frac{y_{k+1}-y_{k-1}}{2*h}$$
in sage so that sage can differ between symbolic $$y_{k+1}$$ and $$y_{k}$$.
Would somebody please help?
