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http://community.wolfram.com/groups/-/m/t/1343953
Hi to all,
This is the first time I'm using Mathematica. I'm trying to analyze data from elemental analysis experiments on a compound in order to find its chemical composition, so I've typed a six equation system with five variables (please find attached the file containing the system if you want to have a look). However, I'm not sure about the command I should use. Solve gives me a result (which does not match the expected composition, but this is another question), but previosuly writes this error message: Solve was unable to solve the system with inexact coefficients. The answer was obtained by solving a corresponding exact system and numericizing the result. What are inexact coefficients and why does the program tell me this?
When I use FindInstance command, the program gives me the same result, but no error message is printed this time. Why?
Finally, when I use Reduce command (I want to know all the possible solutions for my system), the program again prints an error message (Reduce was unable to solve the system with inexact coefficients. The answer was obtained by solving a corresponding exact system and numericizing the result) and the result is False. Why? I expected the program to give me at least the same solution that Solve and FindInstante did.
Could anyone tell me if there is an evident mistake in the code I typed that I'm seeing?
Thank you very much in advance!
Regards!Juan Manuel Casas-Solvas2018-05-23T10:11:30Z