Excel IF Function. ïConsider the following IF function: =IF(B2>=1000,âA $1000 or betterâ, âLess than a grandâ) ïIf the value of B2 is greater than or equal to 1000, than the. function returns the string âA $1000 or betterâ. ïIf the value of B2 is not greater than or equal to 1000, than the.
Discrete Geometry: Points as Dots. In Discrete Geometry, a point is a dot. Lines are composed of an infinite set of dots in a row. Dots may or may not have size and shape, depending on the version studied. Some common applications of discrete geometry include computer displays and printers. The computer screen I am working on at the moment has 80 columns and 25 rows of characters.
The Real Number Line. The Real Number Line is like a geometric line. A point is chosen on the line to be the origin. Points to the right are positive, and points to the left are negative. A distance is chosen to be 1, then whole numbers are marked off: {1,2,3,...}, and also in the negative direction: {...,â3,â2,â1}. Any point on the line is a Real Number: The numbers could be whole (like 7) or rational (like 20/9)