变量与常量
- Author:
- 王吉利, Allison McCulloch
This applet represents the same context as the spreadsheets you just explored. This time the number of months "varies" by changing the slider and the points on the coordinate plane represent the (month, amount paid) for purchasing the car (P) and leasing the car (L). How do these representations of variable compare to those in the spreadsheet? Consider the affordances and constraints.