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avarma1-Visitor
1-Visitor
July 9, 2014
Solved

Using Lookup Function in Program

  • July 9, 2014
  • 2 replies
  • 1620 views

Hello Guys,

I have a problem in my mathcad program.

I was trying to use lookup function in a loop, Attached is the file illustrating my problem.

I was able to use lookup function and get the desired output, but when I have used the same function in a program, I was not getting any errors but it was giving the output as [1,1].

I was still a learner of mathcad and not able figure it out. Could any one plaese help me to resolve this issue, May be my example I have attached here is smaller one, but my real problem contains huge matrix and I need to use lookup function (or if any other) in program to get the desired output.

Thanks a ton for your help!!

Ashok

Best answer by Fred_Kohlhepp

The lookup function is set up to return a vector (in case there are more than one matches to the value you're looking for. The [1,1] is telling you that there is a one element array answer. Try putting "[0" immediately after the lookup function (asking for the first element of the vector.)

2 replies

F
Fred_Kohlhepp23-Emerald IAnswer
23-Emerald I
July 9, 2014

The lookup function is set up to return a vector (in case there are more than one matches to the value you're looking for. The [1,1] is telling you that there is a one element array answer. Try putting "[0" immediately after the lookup function (asking for the first element of the vector.)

    A
    avarma1-VisitorAuthor
    1-Visitor
    July 9, 2014

    It is working now.

    Thanka a lot Fred!!!

    W
    Werner_E25-Diamond I
    25-Diamond I
    July 9, 2014

    Fred has already explained the reason for the behaviour you are experiencing and how to deal with it.

    See the attached file for some more details.

      A
      avarma1-VisitorAuthor
      1-Visitor
      July 9, 2014

      Thanks a lot Werner for your help.

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