Formulus

“If debugging is the process of removing software bugs, then programming must be the process of putting them in.”
–- Edsger Dijkstra

The application is available at: https://mpetruska.github.io/formulus/
(by the courtesy of GitHub Pages)

This project is created for the purpose of helping you creating simple shareable calculations (and not only because the humble author enjoys working with PureScript).

Creating calculations

Operations:

• negation (- prefix)
• mathematical base operators (+, -, *, /)
• "min" and "max" as binary functions (form: min(x, y) and max(x, y))

How to share your calculations

Once your worksheet is ready all the components that make up the calculation (inputs and calculations) are encoded in the fragment identifier of the url (example 1 below). All you need to do is to copy or bookmark the whole url (example 2 below), opening the link in a browser makes the application re-load the worksheet. Be aware that the current values of the input fields are also encoded.

^ example 1: #!i:km:km:2500.0,i:litres%20per%20100%20km:c:7.5,c:total%20consumption:total:km*c%2F100.0:1 ^ example 2: https://mpetruska.github.io/formulus/#!i:km:km:2500.0,i:litres%20per%20100%20km:c:7.5,c:total%20consumption:total:km*c%2F100.0:1

Bonus: if you want to share a non-editable version of the calculation (e.g. to allow only input values to be modified) add an "l" (lowercase L) character between the hash mark (#) and exclamation mark (!) in the fragment identifier.

example: https://mpetruska.github.io/formulus/#l!i:km:km:2500.0,i:litres%20per%20100%20km:c:7.5,c:total%20consumption:total:km*c%2F100.0:1

Feature requests and bugs

Please report the here: https://github.com/mpetruska/formulus/issues