Re: The same function the second time evaluated is faster. Why?
- To: mathgroup at smc.vnet.net
- Subject: [mg119113] Re: The same function the second time evaluated is faster. Why?
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Sun, 22 May 2011 06:54:36 -0400 (EDT)
Why not? Is it a problem? Bobby On Sat, 21 May 2011 05:47:34 -0500, Guillermo Sanchez <guillermo.sanchez at hotmail.com> wrote: > Dear gurus? > > I evaluate the below function , > > Int[1]:=1+1 > > Int[2]:=Timing[(f2[x1_] := Integrate[Sin[x^3], {x, 0, x1}]; > f2[Range[10]]);] > Out[2]:= {12.261, Null} > > I repeat the evaluation is faster > > Out[2]:={1.389, Null} > > and the third faster > > Out[3]:= {0.281, Null} > > Even writting f3 instead f2 > > Timing[(f3[x1_] := Integrate[Sin[x^3], {x, 0, x1}]; f3[Range[10]]);] > {0.281, Null} > > Why the second and third evaluation are faster? > > Guillermo > -- DrMajorBob at yahoo.com