Linked Questions

7
votes
4answers
1k views

Finding intersection points of two graphics [duplicate]

I am drawing a curve from a list using: ...
0
votes
2answers
1k views

intersection between two curves in Mathematica [duplicate]

I have a ListLinePlot of some datas and a plot of a constant function. How can I find the intersection point? My data are: <...
0
votes
0answers
53 views

How to Invert a Multivariate Interpolating Function? [duplicate]

I used NSolve on a partial differential equation with boundary conditions to get a numerical solution that Mathematica says is of the form InterpolatingFunction. I then defined a function f(x,y) which ...
76
votes
9answers
5k views

Updating Wagon's FindAllCrossings2D[] function

Stan Wagon's Mathematica in Action (second edition; I haven't read the third edition and I'm hoping to eventually see it), demonstrates a nifty function called ...
33
votes
2answers
16k views

Marking points of intersection between two curves

I'm trying to illustrate the solutions numerically and graphically for an equation such as Tan[x] == x. I think I did everything ok except I wanted to mark each ...
8
votes
6answers
3k views

Finding where two parametric paths cross?

I have been looking through other parametric equations questions and am still unsure where to start with this one. I am given two functions: ...
2
votes
3answers
4k views

Using FindRoot with an interpolating function

This question bears resemblance to a few other questions on mathematica.SE about finding points of intersection of crossing curves. I know that the guidebook of numerics has an entry about the whole ...
5
votes
2answers
3k views

Calculating the area under a curve, but above a certain threshold value

so here I am with a time series of data (hours (t) and corresponding measurements (a)). ...
6
votes
2answers
1k views

Intersection of two splines

I have a collection of sets of points, each set defining the segment of a (nice) curve on the unit sphere $S^2 \subset \mathbb{R}^3$. The points are computed numerically. I now want to compute the ...
3
votes
1answer
375 views

Find Intersection of Two Interpolation Functions

How can I find the intersection between two interpolation functions? ...
0
votes
3answers
124 views

How to get accurate intersection point values?

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-1
votes
1answer
103 views

How I show the case numbers on a plot? [closed]

I have the following code: ...