[tex]a\text{''}[t]+B[t]*a'[t]-A[t]*a[t]==0[/tex](adsbygoogle = window.adsbygoogle || []).push({});

a[0] = 10^-9

a'[0] = 0

a[t] = ?

The coefficients A and B are variable over time. I HAVE solved (experimental and theoretical values) for the values of A and B over the time interval of interest!

I attempted to solve for a[t] using NDSolve as one normally would when coefficients are not variable over time. No luck.

Any help would be greatly appreciated!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Mathematica: 2nd order PDE, variable coefficients

**Physics Forums | Science Articles, Homework Help, Discussion**