problem using trapz function
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can someone help me figure out how to use the trapz function to find the area under the curve for a graph of for example Y=[1 3 5 9 15] versus t =[0 14 28 35 42] respectively? over the time intervals 0-14,14-28,28-35,35-42. to clarify i'm wondering how one specifies in the trapz funtion to take the area under the curve of a matrix over variable intervals. I've tried trapz(t,Y) but it doesn't work. any help would be greatly appreciated.
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Star Strider
2017-4-28
See if the cumtrapz function does what you want:
z = cumtrapz(t,Y)
It takes the cumulative integrals over each ‘t’ interval.
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2017-4-28
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