help in doing forward and backward difference...

1 vue (au cours des 30 derniers jours)
sri satya ravi
sri satya ravi le 2 Sep 2016
Réponse apportée : KSSV le 2 Sep 2016
dv_dteta = zeros (length(crank_angle),1)
for j = 1:1:length(crank_angle-1) dv_dteta = (s(j+1)-s(j))./(crank_angle(j+1)-crank_angle(j)); end
when i write this i get an error code saying Index exceeds matrix dimensions.
the crank angle is a array of 300 data points.
is there a way to do a backward difference for the first point and the rest forward difference to match the dimensions???

Connectez-vous pour répondre à cette question.

Réponse acceptée

KSSV
KSSV le 2 Sep 2016
You must use
j = 1:length(crank_angle)-1
rather then
j = 1:1:length(crank_angle-1)

Plus de réponses (0)

Catégories

En savoir plus sur Matrix Indexing dans Help Center et File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by