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The letter C in equations, where did it come from?
I calmly solved all the matrices except for those where C is present in the answers, what does it mean?
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Insert this line before the if and you will see why
prompt returns an empty string, not null
Redefined system. The solution is some kind of linear subspace, of dimension such as the number of different c.
Imagine that you have crossed three planes (solving a system of three equations with three unknowns).
You can get a plane (if all three are the same) - this is a space of dimensions two, two letters.
You can get a straight line (dimension 1), one letter
And you can get a dot - there will be no letters at all.
Kurosh's textbook will help you.
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