How do i find the integral of a function

Question

Niranjana Nair 2017-11-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/366715-how-do-i-find-the-integral-of-a-function

编辑： Walter Roberson 2017-11-17

How do i find the integral of a function The function is X(t)=(a1+k1sinw1t)+(a2+k2sinw2t)+ 1/(2*pi*sd)*exp(-(t-mu).^2/(2*sd^2));within the limits 0 to 30 and plot it .

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Are Mjaavatten 2017-11-14

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/366715-how-do-i-find-the-integral-of-a-function#answer_291049

在 MATLAB Online 中打开

X = @(t) a1+k1*sin(w1*t)+(a2+k2*sin(w2*t)+ 1/(2*pi*sd)*exp(-(t-mu).^2/(2*sd^2));
t = linspace(0,30);plot(t,X(t))
plot(t,X(t))
s = integral(X,0,30)

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Niranjana Nair 2017-11-15

Thanks a lot,it helped me.

请先登录，再进行评论。

Answer 2

Niranjana Nair 2017-11-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/366715-how-do-i-find-the-integral-of-a-function#answer_291467

编辑：Walter Roberson 2017-11-17

在 MATLAB Online 中打开

m(t)=m1(t)+m2(t)

is the input to a "integrate and fire" neuron model.m1(t) and m2(t) are arrays of values.K eep threshold T=1. I need to get spikes at the o/p of the model. Whenever integral of m(t) exceeds threshold, a spike has to be generated and integrator is reset.

Can someone help me?

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Are Mjaavatten 2017-11-16

I think you should submit this as a separate question, not as an answer to your previous question. Use a title that may trigger people who might understand your question. I have no knowledge of the kind of model you describe, so I am afraid i cannot help. Consider describing your problem in more detail.

请先登录，再进行评论。

Answer 3

Niranjana Nair 2017-11-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/366715-how-do-i-find-the-integral-of-a-function#answer_291646

Thanks, I have posted it as a question, separately. IPFM is a simple neuron model.The model has an integrator followed by a comparator.When integral of an input function exceeds certain threshold, a comparator produces a spike and integrator is reset. So a pulse train is produced at the o/p of the comparator.