non invertible
/nɑnɪnˈvɜrtəbəl/
adjective
- Not able to be reversed, turned upside down, or changed into the opposite form.
- Some chemical reactions are non-invertible and cannot be undone.
- The function is non-invertible because it is not one-to-one.
- In math class, we learned that a matrix with a determinant of zero is non-invertible.
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