Added "conditional" tag.

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edit approved Jul 27, 2015 at 14:25

dionys

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Improved formatting

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edited Dec 10, 2013 at 15:11

m_goldberg

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I need define the function with parameter so I could directly generate a power series expansion. The problem is that in some cases ConditionalExpression appears in output. Here is my code:

S[x_, l_] := 
  (C[1] + Integrate[E^
     Integrate[
       E^(2 Sum[t^i/i, {i, 1, l - 1}]) *(1 - t)^2*Sum[^2*
         Sum[(l - i*2) t^i*t^i, {i, 1, l - 1}]/((t - 1) t^l*t^l), 
       {t, 1, x}])*
   x^(l - 1)*E^(-2 Sum[x^i/i, {i, 1, l - 1}])/(1 - x)^2;  

Table[S[x, i], {i, 2, 3}] // TableForm
CoefficientList[Series[S[x, 2] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3][[1]] , {x, 0, 3}], x]

I need define the function with parameter so I could directly generate a power series expansion. The problem is that in some cases ConditionalExpression appears in output. Here is my code:

S[x_, l_] := (C[1] + Integrate[E^(2 Sum[t^i/i, {i, 1, l - 1}]) (1 - t)^2*Sum[(l - i*2) t^i, {i, 1, l - 1}]/((t - 1) t^l), {t, 1, x}]) x^(l - 1)*E^(-2 Sum[x^i/i, {i, 1, l - 1}])/(1 - x)^2; 
Table[S[x, i], {i, 2, 3}] // TableForm
CoefficientList[Series[S[x, 2] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3][[1]] , {x, 0, 3}], x]

I need define the function with parameter so I could directly generate a power series expansion. The problem is that in some cases ConditionalExpression appears in output. Here is my code:

S[x_, l_] := 
  (C[1] + 
     Integrate[
       E^(2 Sum[t^i/i, {i, 1, l - 1}])*(1 - t)^2*
         Sum[(l - i*2)*t^i, {i, 1, l - 1}]/((t - 1)*t^l), 
       {t, 1, x}])*
   x^(l - 1)*E^(-2 Sum[x^i/i, {i, 1, l - 1}])/(1 - x)^2;  

Table[S[x, i], {i, 2, 3}] // TableForm
CoefficientList[Series[S[x, 2] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3][[1]] , {x, 0, 3}], x]

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asked Nov 11, 2013 at 10:04

Филипп Цветков

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How to remove ConditionalExpression from output

I need define the function with parameter so I could directly generate a power series expansion. The problem is that in some cases ConditionalExpression appears in output. Here is my code:

S[x_, l_] := (C[1] + Integrate[E^(2 Sum[t^i/i, {i, 1, l - 1}]) (1 - t)^2*Sum[(l - i*2) t^i, {i, 1, l - 1}]/((t - 1) t^l), {t, 1, x}]) x^(l - 1)*E^(-2 Sum[x^i/i, {i, 1, l - 1}])/(1 - x)^2; 
Table[S[x, i], {i, 2, 3}] // TableForm
CoefficientList[Series[S[x, 2] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3] , {x, 0, 3}], x]
CoefficientList[Series[S[x, 3][[1]] , {x, 0, 3}], x]

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How to remove ConditionalExpression from output