Session 4.1 Part c Expressions and procdures defined in a new session left over from previous session(s).
Here is what we would find after executing all the commands in Sessions 4.1a except the restart command at the end.
> z; All the expressions still have the values we gave them.
> f1;
> f2;
> trigl; just typing the name of the procedure does not produce anything except an echo of the name.
> trigl(5,0,0.5); The trigl procedure can still be used.
0 0 1 .5 .4794255386 .8775825619 1.0 .8414709848 .5403023059 1.5 .9974949866 .7073720167e-1 2.0 .9092974268 -.4161468365
>