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Question: Intersection of datapoints with x-axis and area under the graph up to that point.

Question:Intersection of datapoints with x-axis and area under the graph up to that point.

krismalo 75 Maple 2015
plot area intersection
December 16 2016
0

Hello! with the datapoints below I've calulated the results "manually" 
I'm looking for a way to make Maple tell me the intersection of these datapoints with the x-axis and also, the area under it from e.g. 0 to 5.125, which i've also had to calculate by hand... I know I can use int comand to do this, but I think there is a lot wrong with the syntax, so after hours of failure I hope someone can show me the right commands..

 

Thanks, 
krismalo
 

 

 

t1 := Matrix(14, 2, {(1, 1) = 0, (1, 2) = 0, (2, 1) = 0, (2, 2) = 4170, (3, 1) = 1, (3, 2) = 3966, (4, 1) = 1, (4, 2) = 3466, (5, 1) = 3, (5, 2) = 3058, (6, 1) = 3, (6, 2) = 3058, (7, 1) = 4, (7, 2) = 1854, (8, 1) = 4, (8, 2) = 1354, (9, 1) = 7, (9, 2) = -2258, (10, 1) = 7, (10, 2) = -2758, (11, 1) = 8, (11, 2) = -3962, (12, 1) = 8, (12, 2) = -3962, (13, 1) = 10, (13, 2) = -4370, (14, 1) = 10, (14, 2) = 0})plot(t1); =  

 

 

The intersection of this plot with the x-axis should be ≈ 5.125 and the area from 0 to 5.125 (or from 5.125 to 10) should be ≈ 13810

 

 

 

 

NULL


 

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