Plotting a function not working

8 次查看（过去 30 天）
Jonathon Mook
Jonathon Mook 2020-4-10
评论： Tommy 2020-4-11
Hi.
I'm attempting to plot a function for the Current in a resistor-inductor circuit but am having no success in producing a proper graph. Why is this program not producing a graph with curves and only producing a straight line? Thanks

请先登录，再回答此问题。

采纳的回答

Tommy
Tommy 2020-4-11
One possible explanation:
b=cos(omega*t*phi);
c=cos(phi)*exp(-t*R/L);
In these lines you use t, which is your upper bound on the time, rather than T, a vector containing each time point. As a result, I is a scalar corresponding to the current at the last time point.
b=cos(omega*T*phi);
c=cos(phi)*exp(-T*R/L);
Using these instead, I will be a vector with the same size as T which contains the current at each time point. If you want to plot current over time, you'll need to flip your arguments to plot:
plot(T, I)
  2 个评论
Jonathon Mook
Jonathon Mook 2020-4-11
I'm so stupid I didn't see that. That worked fantastic. I'm new to this, but I'm learning. Thanks so much!

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Annotations 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