Ctrl + Shift + Enter: Excel Array Formulas #02: Introduction Array Formulas & Math Array Operation

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EXCEL ARRAY FORMULAS WORK THE SAME IN ANY VERSION OF EXCEL!!!

This video covers:
1. (01:00 min) What is an "Array"?
2. (01:55 min) Arrays in Excel.
3. (02:41 min) What is an Array Formula? (See book for more complete definition of an Array Formula)
4. (03:43 min) Non-Array Formulas operate on single values.
5. (04:30 min) Non-Array Formulas can make aggregate calculations.
6. (05:22 min) Array Formula that makes "math" operation on an array.
7. (05:22 min) Formula goal: Calculate maximum stock value change.
8. (08:10 min) Arrays in formula: =MAX(E21:E24-D21:D24).
9. (08:25 min) Special Keystroke, Ctrl + Shift + Enter, is required when entering an Array Formula unless the specific function argument is programmed to perform array calculations or the array calculations are done on array constants.
10. (08:25 min) If you forget Ctrl + Shift + Enter, one of two things will happen: 1) #VALUE! error or 2) implicit intersection.
11. (13:25 min) Which method is better: Helper Column or Array Formula? First look.
12. (14:20 min) Calculating notes about Array Formula =MAX(E21:E24-D21:D24).
13. (14:26 min) Math Operators.
14. (14:40 min) Benefits of Array Formulas.
15. (14:40 min) Drawbacks of Array Formulas.
16. (17:59 min) When considering the use of Array Formulas always consider whether other methods would be more efficient.

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EXCEL ARRAY FORMULAS WORK THE SAME IN ANY VERSION OF EXCEL!!!
Buy Ctrl + Shift + Enter: Mastering Excel Array Formulas DVD at A: http://www.amazon.com/Ctrl-shift-enter-Mastering-Formulas/dp/1615470085
Ctrl + Shift + Enter: Mastering Excel Array Formulas Book: http://www.amazon.com/Ctrl-Shift-Enter-Efficient-Calculating/dp/1615470077
Ctrl+Shift+Enter: A Book About Building Efficient Formulas, Advanced Formulas, and Array Formulas for Data Analysis and Calculating Problems
Designed with Excel gurus in mind, this handbook outlines how to create formulas that can be used to solve everyday problems with a series of data values that standard Excel formulas cannot or would be too arduous to attempt. Beginning with an introduction to array formulas, this manual examines topics such as how they differ from ordinary formulas, the benefits and drawbacks of their use, functions that can and cannot handle array calculations, and array constants and functions. Among the practical applications surveyed include how to extract data from tables and unique lists, how to get results that match any criteria, and how to utilize various methods for unique counts. This book contains 529 screen shots.
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See book for more complete definition of an Array Formula.
The definition for Array Formula is
Definition of array formula:
1) An array formula is a formula that contains an operation (math, comparative, join, or function argument) on an array of items rather than on single items, and, the operation delivers a resultant array of items rather than a single item.
2) This operation is called an array operation and is distinguished from an aggregate operation, which delivers a single item.
3) The resultant array of items can be used as a formula element in a larger formulas, or it can be the final answer.
4) The final answer from an array formula can either be a single item or an array of items.