? erfflag;

Calculate

? erfflag;

Calculate

### erfflag

Run Example
```(%i1)assume (t>
0);
(%o1)                               [t > 0]
(%i2) assume (T>
0);
(%o2)                               [T > 0]
(%i3) erfflag:false;
(%o3)                                false
(%i4) erfflag;
(%o4)                                false
(%i5) tldefint ((2*j+1)*exp(-(t/T)*j*(j+1)), j, 0, inf);
T
(%o5)                                  -
t
(%i6) ```
Run Example
```assume (t>
0);
(%o1)                               [t > 0]
(%i2) assume (T>
0);
(%o2)                               [T > 0]
(%i3) erfflag:false;
(%o3)                                false
(%i4) integrate (j*(2*j+1)*exp(-(t/T)*j*(j+1)), j, 0, inf);
inf                 j (j + 1) t
/                  - -----------
[                         T
(%o4)                 I    j (2 j + 1) %e              dj
]
/
0
(%i5) ```
Run Example
```assume (t>
0);
(%o1)                               [t > 0]
(%i2) assume (T>
0);
(%o2)                               [T > 0]
(%i3) erfflag:false;
(%o3)                                false
(%i4) integrate ((2*j+1)*exp(-(t/T)*j*(j+1)), j, 0, inf);
T
(%o4)                                  -
t
(%i5) ```

Help for Erfflag