ScratchWork App for iPad
'ScratchWork allows you to take notes and browse the web while having the two side by side to avoid back and forth flipping. It also provides a custom math keyboard.
With Scratch Work You Can Easily
-Take notes and browse the web side by side
-Take notes in full screen
-Browse the web in full screen
-Email your note as a PDF or plain text
-Save Notes with its corresponding web pages
-Input math and logic characters using the custom keyboard provided
-Delete notes by swiping on it in the notes menu while it is unopened
-Sync your notes to the cloud
-Insert sketch areas in your note to draw on
-Print your notes with Airprint
New With 3.0:
-You can now insert plot functions when inserting Graphs in Sketch Mode.'
This is a free app