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Student Support Forum: 'Using the solution of a Solve function' topicStudent Support Forum > General > Archives > "Using the solution of a Solve function"

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Connie
10/06/11 8:07pm

Hi,

I am attempting to solve a series of equations and need to set the solved for variable and use it in later equations. My code is as follows:

Pe = 1; (*Exit Pressure*)
P0 = 100; (*User set desired pressure*)
T = 273; (* Temperature of operation*)
k = 1.28; (*Ratio of specific heats CO2*)
sol = Solve[ Pe/P0 == ( 1 + ((k - 1)/2)*Me^2)^(k/(1 - k)), Me][[2]];
sol2 = Solve[Te/T == (1 + ((k - 1)/2)*Me^2)^-1, Te]

and the output is
{{Te -> 273./(1. + 0.14 (Me -> 3.52382)^2)}}

which is not exactly what I want. I want to set Me equal to the solved for value and then use it to find Te, which seems to be doing something odd at the moment.

Help much appreciated. Thanks in advance.

-Connie

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Subject (listing for 'Using the solution of a Solve function')
Author Date Posted
Using the solution of a Solve function Connie 10/06/11 8:07pm
Re: Using the solution of a Solve function Howie 10/13/11 05:04am
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