Problem with evaluating Integral

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Problem with evaluating Integral*From*: "John Yearwood" <JLY at fs2.buc.edu.au>*Date*: 13 Apr 92 09:37:45 EST

Can anyone tell me why Mathematica v2.0 (for windows or Mac) does not make any progress with the following: f[x_]:= Sin[x]+Exp[x] j[x_]:=Evaluate[Normal[Series[f[x],{x,a,4}]]] err[a_]:=Integrate[(f[x] - j[x])^2,{x,-6,2}] Evaluate[err[a]] We have tried this and similar attempts with v1.2 and with 387 Mma and it either gives no result after several hours or runs out of memory or says that there is an error at line 1776 of the Integrate procedure. Thanks John Yearwood School of Mathematics and Computing Ballarat University College Gear Avenue Mt. Helen Victoria Australia. Fax:053 33 9545