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Singular Integration


FindFit and Integration errorsNumerical Integration as Model for Nonlinear FitIntegration with mathematica?Evaluating a numerical integration with infinity as limitNIntegrate fails to converge around a value out of integration rangeIntegration doesn't workHelp with Hartree-Fock integralNumerical integration graph and convergenceIntegration involving Hermite polynomialsDifferent integration results when TrigToExp used













2












$begingroup$


I am trying to simplify the following integral but getting no answer. Any help in how to get the resulting function as a function of t would be much appreciated?



t - Integrate[Abs[t - s]^(-1/2)*s, s, 0, 1]










share|improve this question











$endgroup$
















    2












    $begingroup$


    I am trying to simplify the following integral but getting no answer. Any help in how to get the resulting function as a function of t would be much appreciated?



    t - Integrate[Abs[t - s]^(-1/2)*s, s, 0, 1]










    share|improve this question











    $endgroup$














      2












      2








      2





      $begingroup$


      I am trying to simplify the following integral but getting no answer. Any help in how to get the resulting function as a function of t would be much appreciated?



      t - Integrate[Abs[t - s]^(-1/2)*s, s, 0, 1]










      share|improve this question











      $endgroup$




      I am trying to simplify the following integral but getting no answer. Any help in how to get the resulting function as a function of t would be much appreciated?



      t - Integrate[Abs[t - s]^(-1/2)*s, s, 0, 1]







      calculus-and-analysis numerical-integration






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited May 19 at 18:40









      Carl Woll

      81.7k3105209




      81.7k3105209










      asked May 19 at 18:27









      Mutaz Mutaz

      1016




      1016




















          1 Answer
          1






          active

          oldest

          votes


















          4












          $begingroup$

          You just need to give Integrate an assumption:



          t - Integrate[Abs[t-s]^(-1/2)*s,s,0,1, Assumptions->t ∈ Reals] //TeXForm



          $t-left(
          beginarraycc
          { &
          beginarraycc
          frac23 left(2 (-t)^3/2+2 sqrt1-t t+sqrt1-tright) & tleq 0 \
          -frac23 left(-2 t^3/2+2 sqrtt-1 t+sqrtt-1right) & tgeq 1 \
          frac23 left(2 t^3/2+2 sqrt1-t t+sqrt1-tright) & textTrue \
          endarray
          \
          endarray
          right)$







          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
            $endgroup$
            – Mutaz
            May 19 at 19:18










          • $begingroup$
            @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
            $endgroup$
            – mikado
            May 19 at 19:30










          • $begingroup$
            Ok, will do. Thank you!
            $endgroup$
            – Mutaz
            May 19 at 19:31











          Your Answer








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          1 Answer
          1






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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

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          active

          oldest

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          4












          $begingroup$

          You just need to give Integrate an assumption:



          t - Integrate[Abs[t-s]^(-1/2)*s,s,0,1, Assumptions->t ∈ Reals] //TeXForm



          $t-left(
          beginarraycc
          { &
          beginarraycc
          frac23 left(2 (-t)^3/2+2 sqrt1-t t+sqrt1-tright) & tleq 0 \
          -frac23 left(-2 t^3/2+2 sqrtt-1 t+sqrtt-1right) & tgeq 1 \
          frac23 left(2 t^3/2+2 sqrt1-t t+sqrt1-tright) & textTrue \
          endarray
          \
          endarray
          right)$







          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
            $endgroup$
            – Mutaz
            May 19 at 19:18










          • $begingroup$
            @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
            $endgroup$
            – mikado
            May 19 at 19:30










          • $begingroup$
            Ok, will do. Thank you!
            $endgroup$
            – Mutaz
            May 19 at 19:31















          4












          $begingroup$

          You just need to give Integrate an assumption:



          t - Integrate[Abs[t-s]^(-1/2)*s,s,0,1, Assumptions->t ∈ Reals] //TeXForm



          $t-left(
          beginarraycc
          { &
          beginarraycc
          frac23 left(2 (-t)^3/2+2 sqrt1-t t+sqrt1-tright) & tleq 0 \
          -frac23 left(-2 t^3/2+2 sqrtt-1 t+sqrtt-1right) & tgeq 1 \
          frac23 left(2 t^3/2+2 sqrt1-t t+sqrt1-tright) & textTrue \
          endarray
          \
          endarray
          right)$







          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
            $endgroup$
            – Mutaz
            May 19 at 19:18










          • $begingroup$
            @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
            $endgroup$
            – mikado
            May 19 at 19:30










          • $begingroup$
            Ok, will do. Thank you!
            $endgroup$
            – Mutaz
            May 19 at 19:31













          4












          4








          4





          $begingroup$

          You just need to give Integrate an assumption:



          t - Integrate[Abs[t-s]^(-1/2)*s,s,0,1, Assumptions->t ∈ Reals] //TeXForm



          $t-left(
          beginarraycc
          { &
          beginarraycc
          frac23 left(2 (-t)^3/2+2 sqrt1-t t+sqrt1-tright) & tleq 0 \
          -frac23 left(-2 t^3/2+2 sqrtt-1 t+sqrtt-1right) & tgeq 1 \
          frac23 left(2 t^3/2+2 sqrt1-t t+sqrt1-tright) & textTrue \
          endarray
          \
          endarray
          right)$







          share|improve this answer









          $endgroup$



          You just need to give Integrate an assumption:



          t - Integrate[Abs[t-s]^(-1/2)*s,s,0,1, Assumptions->t ∈ Reals] //TeXForm



          $t-left(
          beginarraycc
          { &
          beginarraycc
          frac23 left(2 (-t)^3/2+2 sqrt1-t t+sqrt1-tright) & tleq 0 \
          -frac23 left(-2 t^3/2+2 sqrtt-1 t+sqrtt-1right) & tgeq 1 \
          frac23 left(2 t^3/2+2 sqrt1-t t+sqrt1-tright) & textTrue \
          endarray
          \
          endarray
          right)$








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered May 19 at 18:39









          Carl WollCarl Woll

          81.7k3105209




          81.7k3105209











          • $begingroup$
            Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
            $endgroup$
            – Mutaz
            May 19 at 19:18










          • $begingroup$
            @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
            $endgroup$
            – mikado
            May 19 at 19:30










          • $begingroup$
            Ok, will do. Thank you!
            $endgroup$
            – Mutaz
            May 19 at 19:31
















          • $begingroup$
            Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
            $endgroup$
            – Mutaz
            May 19 at 19:18










          • $begingroup$
            @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
            $endgroup$
            – mikado
            May 19 at 19:30










          • $begingroup$
            Ok, will do. Thank you!
            $endgroup$
            – Mutaz
            May 19 at 19:31















          $begingroup$
          Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
          $endgroup$
          – Mutaz
          May 19 at 19:18




          $begingroup$
          Thank you for your comment. I just have a question, do you have an idea how to find a numerical solution for Integrate[Abs[t - s]^(-1/2)*u(s), s, 0, 1] assuming that we dont know the solution u?
          $endgroup$
          – Mutaz
          May 19 at 19:18












          $begingroup$
          @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
          $endgroup$
          – mikado
          May 19 at 19:30




          $begingroup$
          @Mutaz, better to ask a new question (referencing this answer) than request additional help in the comments.
          $endgroup$
          – mikado
          May 19 at 19:30












          $begingroup$
          Ok, will do. Thank you!
          $endgroup$
          – Mutaz
          May 19 at 19:31




          $begingroup$
          Ok, will do. Thank you!
          $endgroup$
          – Mutaz
          May 19 at 19:31

















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