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I have been working on finding a parabola with three points by using the determinant method. The coefficients that are returned are sometimes
-0.0000
What does this mean? Why is there a negative sign and what does it signify?
478
asked Jul 25 '13 11:07
Description: The percent sign is most commonly used to indicate nonexecutable text within the body of a program. This text is normally used to include comments in your code. Some functions also interpret the percent sign as a conversion specifier.
Direct link to this answer https://www.mathworks.com/matlabcentral/answers/204-what-does-a-mean-in-the-following-code#answer_229. Helpful (9) Helpful (9) ~ means 'not' DOC link.
A ~= B returns a logical array with elements set to logical 1 ( true ) where arrays A and B are not equal; otherwise, the element is logical 0 ( false ). The test compares both real and imaginary parts of numeric arrays.
(MATLAB Functions) Special Characters [ ] ( ) {} = ' . ... , ; % ! Brackets are used to form vectors and matrices. [6.9 9.64 sqrt(-1)] is a vector with three elements separated by blanks.
Try format long g to see more significant digits. The number is probably very slightly negative.
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