清空筛选条件
清空筛选条件

How to calculate velocity of length change and acceleration of it?

5 次查看（过去 30 天）
lisa Liang
lisa Liang 2020-7-30
回答： Cris LaPierre 2020-7-30
Hello everyone,
I am trying to calculate velocity and acceleration of a length change out of the 'AddDist' matrix. I am thinking of using V=(length 2 - length 1)/time for velocity (which should give me a vector not scalar?) and a=(V2 - V1)/time for acceleration. But I am not sure how to make MatLab have the 2nd column subtracts the 1st column, then the 3rd column subtract the 2nd column, and so on...
this is what I thought how it would work but it didn't seem to make sense in MatLab for calculating what I want. 0.002 is my time as the time gap between each rows is always 0.002s.
AddDistV = (AddDist(i+1)-AddDist(i))/(0.002)
for i = 1:size(AddDist,1)
AddDistV = (AddDist(i+1)-AddDist(i))/(1/0.002)
end
I am still trying to learn coding in MATLAB. Sorry if my question is too basic. Thank you for your help and time in advance!

请先登录，再回答此问题。

采纳的回答

Cris LaPierre
Cris LaPierre 2020-7-30
Use the diff function.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with MATLAB 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by