Swift playground book like numpy and jupyter notebook.
You have to install Swift playgrounds application via AppStore. And, build playground book using the following commands.
cd Tools
./build-book.rb # build playground for iPad and Xcode
One can send playground book to iPad via AirDrop.
Drag and drop to your iPad in AirDrop view, like below image.
After sending playground book to your iPad, following alert is shown on yours. And then tap Playgrounds in order to import it into Swift playgrounds.app.
Double click playground file to open it, and then playground view will be opened. One can open playground view by tapping the icon inside red circle in the below image.
