Across
- 5. A matrix is invertible if and only if its _____ is diffrent from zero.
- 8. We can look at substraction of a number, as adding a _____ number.
- 9. Usually represented as a horizontal line, can help you compare numbers. Assumed middle is zero, and it can be extended infinitely in both directions.
- 10. A numerical quantity that is not a whole number.
- 12. Minus time minus is _____.
- 14. (2x2) _____, are one of the most fundamental linear algebraic ideas.
- 15. A vector space is defined over a ____, e.g. ____ of real numbers.
Down
- 1. Vectors, as n-tuples, are _____ lists of n components.
- 2. An expression that is constructed from one or more variables and constants using only the oprations of addition, subtraction, multiplication and constant positive whole number exponents.
- 3. ____ number has a form of a+bi.
- 4. A quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression.
- 6. Adding two negative numbers is just the backward of "regular" _____.
- 7. A vector is an object that has a ______ and a direction.
- 11. When multiplying or dividing, we can "_____ off" minus signs.
- 12. Order of operations
- 13. Vector spaces are also called _____ spaces.