LegendreFit.java running Legendre coefficients for exp(x) a[0]=2.350403134460353 a[1]=0.7357606105797231 a[2]=0.14312943062344857 a[3]=0.020135645144729136 a[4]=0.002225030722350368 a[5]=2.1211336479808485E-4 for 2 power: avgerr=0.022937574054669646 maxerr=0.0762858556098509 rmserr=0.026818001015715416 for 3 power: avgerr=0.002859405962157746 maxerr=0.009986903202082065 rmserr=0.0033331473109269347 for 4 power: avgerr=2.873724638302416E-4 maxerr=9.531751236155905E-4 rmserr=3.32271483675132E-4 for 5 power: avgerr=3.4346991557190345E-5 maxerr=9.998558234725063E-5 rmserr=3.8613995181327256E-5