# Tag Info

1 vote
Accepted

### Obtaining different answers when using NDSolve vs ParametricNDSolveValue

Solutions computed with NDSolve and ParametricNDSolve are the same as it follows from the test ...
• 37.6k
Accepted

### ListInterpolation and extrapolation: order has been reduced,

ListInterpolation does not expect a list of $\{x_i, y_i\}$ values. The way you are using it, Mathematica interprets it as a 2D array, and in one dimension you have ...
• 33.3k

...
• 135k

### Solve a parametric equation in 2 variables

Let us do the following: Step 1: ...
• 36.5k

### Solve a parametric equation in 2 variables

Regarding only real variables and parameters. Due to Cos multiple solutions represented by C1,C2 ...
• 17k

### 2D cross-section of ParametricPlot3D

Also using MeshFunctions. Using MeshShading -> {Automatic, None} or ...
• 49.5k

### 2D cross-section of ParametricPlot3D

We may set the z component to a given value and then solve for e.g.u. Then we have u[v]. This then defines a line. The problem here is, that the solution is multivalued. We therefore create as many ...
• 35.5k

### 2D cross-section of ParametricPlot3D

Clear["Global`*"] {fx, fy, fz} = { (29/25)^v Cos[v] (1 + Cos[u]), -(29/25)^v Sin[v] (1 + Cos[u]), -2 (29/25)^v (1 + Sin[u])}; The values of <...
• 135k