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Question: Error, (in Optimization:-NLPSolve) could not store Int(..) in a floating-point rtable

Question:Error, (in Optimization:-NLPSolve) could not store Int(..) in a floating-point rtable

mehdi jafari 754 Maple 2021
integration nlpsolve optimization
October 14 2022
1

i have a problem in an optimzation problem. in the problem using NLPSolve to find the minimum, i have an integration which i use the Int command to be solved in the optimization process, but this error occures: Error, (in Optimization:-NLPSolve) could not store Int(..) in a floating-point rtable 
please help to solve the problem, tnx in advance

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restart:with(LinearAlgebra):
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N:=3:
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m:=Vector([ 1 , log(x+b3) , b2/(x+b3) ]):
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A:=m.m^+:
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for i to N do
m||i:=eval(A,[x=x||i]);
od:
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M:=add(w||i*m||i,i=1..N-1)+(1-add(w||i,i=1..N-1))*m||N:
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MM:=( LinearAlgebra:-Trace(MatrixInverse(M)) ):
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IF1:=evalf(Int(MM,[b2=1..2,b3=1..2],method = _d01ajc,epsilon=0.001)):
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s:= Optimization:-NLPSolve(IF1,w1=0..1,w2=0..1,x1=1..10,x2=1..10,x3=1..10,variables=[w1,w2,x1,x2,x3],initialpoint={w1=0.6,w2=.1,x1=8,x2=7,x3=5},maximize=false,method=modifiednewton)

Error, (in Optimization:-NLPSolve) could not store Int(Int(16.6666666666666679*(-448.000000000000057*ln(7.+b3)*ln(5.+b3)+76.1999999999999886*ln(8.+b3)^2*b3^2+.199999999999999956*ln(8.+b3)^2*b3^4+.399999999999999911*ln(5.+b3)^2*b3^4+527.500000000000000*ln(5.+b3)^2+780.799999999999727*ln(8.+b3)^2+191.100000000000023*ln(7.+b3)^2+89.0999999999999943*ln(5.+b3)^2*b3^2+9.79999999999999893*ln(5.+b3)^2*b3^3+6.39999999999999858*ln(8.+b3)^2*b3^3+400.*ln(8.+b3)^2*b3+12.3000000000000025*ln(7.+b3)^2*b3^2+84.0000000000000142*ln(7.+b3)^2*b3+356.*ln(5.+b3)^2*b3+.600000000000000089*ln(7.+b3)^2*b3^3-1176.*ln(8.+b3)*ln(5.+b3)+280.*ln(8.+b ... 99999999999716*ln(7.+b3)*ln(5.+b3))^2), b2 = 1. .. 2.), b3 = 1. .. 2.) in a floating-point rtable

  
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