Integration vertically

[awibroe]

Hello to all,

I am looking to see if you can tell MathCAD to integrate not along the x axis by along the y axis.

In the attached I am trying to integrate the area above the plotted line i.e. from 0m upward to 5m integrating all the values of x in terms of y as opposed to the default which is to integrate under the line all the values of y in terms of x. There is madness to the logic as to why I want to do this I promise.

If I can get this to work the answer should obviously be 25m^2.

Thanks

Andy

[LucMeekes]

Just for completeness, here's a function to do 'vertical integration' on an arbitrary function (well.... arbitrary..... there are limitations):

Luc

[tietjee]

I can understand your desire to integrate along the y-axis.  You should go back to your calculus definition of integration.  There is a significant reason to only allow integration along the x-axis.  The only way this can be done if there is a unique relationship between x and y.

Example  y = Mx + B has a unique relationship between x and y i.e. for each x there is a unique y

Example y = Mx^2  This does not a unique relationship, for each y there are two x's that are a solution.

Cheers