Making a slider take anything but linear values involves some sort of two-step process. In this case a calculation. The slider value is exponentiated, and this new 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 great range of values: [br][br][list][*]If the variable represents illumination, in Lux, then typically you want this to vary from 1 Lux (dark room) to 50000 Lux (bright sunny day)[/*][*]Similarly, if the variable represents seimic energy, luminosity, sound intensity, hydrogen ion concentration etc, then the actual slider represents the Richter scale magnitude, stellar magnitude, sound level in dB, pH-value etc. [/*][/list]
The construction above uses the following KEY ELEMENTS: [br][br][list][*][b]A slider[/b]: Create a slider a in the range from -2 to 7 with a step size of 0.1. Hide the label completely. [br][/*][*][b]A number[/b]: Let b = 10^a. [/*][*][b]A text box[/b]: Define a text box with the text "b = [b]b[/b]", where [b]b [/b]is the dynamic object b slected from the drop-down objects menu in the text box dialogue. [/*][/list]