# Tag Info

Accepted

### Integrating over $x$ in numerically solving a partial integrodifferential equation

NDSolve is not capable of solving this sort of problem as a PDE. Thus, it is necessary to perform the computation by discretizing the PDE in ...
• 61.4k

### Solving the Lotka-McKendrick model with NDSolve

I'm not an expert on age-structured populations (particularly this continuous-time model) and I know better numerical methods exist, but why not just discretize in age ...
• 20.2k
Accepted

### Why can't Mathematica solve this definite integral?

Likely this is due to the fact that antiderivative are troublesome in computer algebra systems. Do this: ...
• 23.4k
Accepted

### Solving integral equation

With some effort you can find numerical solution. Let us discretize function f at num points, e.g. ...

• 47.5k

### Solving the Lotka-McKendrick model with NDSolve

There is no unique solution for data provided by @Pillsy, since boundary and initial conditions are inconsistent. To show it we just use exact solution in a form: ...
• 44.5k
Accepted

### How to increase the speed of Collocation method to solve System of differential equations

First of all, the NDSolve solution can be further improved: ...
• 66k
Accepted

### Multiple Integration

Try this 1D integration ...
• 18.2k