Across
- 3. a column or row matrix
- 6. a fixed number
- 8. an element of which the value is undetermined
- 10. employment data to perform empirical analysis
- 12. all the variables in a equation are one degree
- 13. formed by several rows (columns) of data
- 14. a collection of part of the elements of a set
Down
- 1. a collection of elements with similar feature
- 2. a mapping relationship between two variables
- 4. a basic unit that forms a model
- 5. a condition in which no surplus or shortage
- 7. any function that can be expressed as a polynomial or the square root of a polynomial
- 9. a function with different variables and degrees
- 11. except the diagonal elements are equal to one, all other elements are zero