using diff or gradient function normalized the vector

2015 4 3
1 个回答
更新时间：2015 4 4
10 次查看（30 天）

0 个投票

for some reason when i use gradient function over a vector the scale get lowerd for example of sin function: the maximum is divided by 10 and in other cases the maximum is divided by something else

请先登录，再回答此问题。

回答（1 个）

Jos
Jos 2015-4-4

0 个投票

you have to divide by the time step. For instance, this gives you what you want
dt=0.1;
t=-2*pi:dt:2*pi;
subplot(3,1,1)
plot(t,sin(t))
subplot(3,1,2)
plot(t,gradient(sin(t),dt))
subplot(3,1,3)
plot(t(1:end-1),diff(sin(t))/dt)

类别

在 帮助中心 和 File Exchange 中查找有关 Subplots 的更多信息

产品

标签

提问:

Kobi
Kobi
2015-4-3

回答：

Jos
Jos
2015-4-4

Community Treasure Hunt

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

Start Hunting!

Translated by