Mac

Variable autocomplete

Press escape to show a menu of long variable names, then press return to auto-complete it

Hover for variable value

Scrubbable numbers

Control-click on a number and choose Scrub to show the scrubber. Drag left or right on the slider to scrub the number's value up or down.

What day of the week was it on a particular day?

Control-click on a date in the answer column to see what date of the week it was or will be on

Quickly copying an answer

Hold down the option key, and double click on an answer to quickly copy it to the clipboard.

Copying lines & answers as an image

A quick way of sharing calculations is as an image.

Select some lines and go Edit > Copy > Copy Lines & Answers as image. This will place an image onto the clipboard that you can then paste into Messages, Mail, etc.