Making a slider take anything but linear values involves some sort of two-step process. In this case looking up the value from a list. This list value is shown in a text box instead of the actual slider value. [br][br](This side originally created by [url=https://www.geogebra.org/themadmathematician]Jonas Hall[/url])
This is useful when you want to changa a variable across a discrete range of values: [br][br][list][*]Showing values from a data table[/*][*]Showing particular samples that are not linear, such as whn archimedes calculated the value of pi by inscribing and circumscribing a 3-, 6-, 12-, 24-, 48- and a 96-gon. [/*][/list]
The construction above uses the following KEY ELEMENTS: [br][br][list][*][b]A list[/b]: Create a list, L, of the values you want the list to take. [/*][*][b]A slider[/b]: Create an integer slider n in the range from 1 to Length(L) with a step size of 1. Hide the label completely. [br][/*][*][b]A number[/b]: Let a = L(n). [/*][*][b]A text box[/b]: Define a text box with the text "n = [b]a[/b]", where [b]a [/b]is the dynamic object a slected from the drop-down objects menu in the text box dialogue. [/*][/list]