| Original Message (ID '53792') By Bill Simpson: |
| Perhaps you can see how to apply this.
In[1]:= b[t_]:=Piecewise[{
{100,0≤t<2},
{0,2≤t<4},
{100,4≤t<4+1/2},
{0,4+1/2≤t<4+3/4},
{100,4+3/4≤t≤4+7/8}
}];
DSolve[{a[t]== -a'[t]b[t]},a[t],t]
Out[2]= {{a[t] ->
E^Piecewise[{
{ComplexInfinity, t <= 0},
{-t/100, 0 |
|
