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 Author Comment/Response Kaitlin 01/18/13 5:45pm Hi, I am trying to define a variable (k1) as the expression that is given as one of the possible solutions from the Solve function so that when I have "k1" further in the program, it will use the solution from the Solve function. Here is the code in question, simplified: Input: Solve[Eq4==0,k1] Output: {{k1-> 4.3*(2.4+1.4*c2+Sqrt[4.6*c2^2+2.02*c2^4]},{k1->4.3*(2.4+1.4*c2-Sqrt[4.6*c2^2+2.02*c2^4]} So then I have been typing k1:= on the next line and copy-pasting this part in to get: k1:=4.3*(2.4+1.4*c2+Sqrt[4.6*c2^2+2.02*c2^4 So that I can use it in: Eq3:=m1*k3+m3*k1+c1*c3-c2^2 Solve[Eq3==0,c2] To get a value for c2. Surely there is a way to avoid copy-pasting? I feel like the . is supposed to come into play, but I don't understand the syntax for it and can't figure out what to search for to use it! Thanks! Kaitlin URL: ,

 Subject (listing for 'Replacing a variable with a solution?') Author Date Posted Replacing a variable with a solution? Kaitlin 01/18/13 5:45pm Re: Replacing a variable with a solution? Bill Simpson 01/20/13 9:41pm Re: Re: Replacing a variable with a solution? Kaitlin 01/21/13 12:13pm
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