https://qualifications.pearson.com/en/qualifications/edexcel-a-levels/mathematics-2017.html
https://www.aqa.org.uk/subjects/mathematics/as-and-a-level/mathematics-7357/specification-at-a-glance
https://www.ocr.org.uk/qualifications/as-and-a-level/mathematics-a-h230-h240-from-2017/
https://b28mathstutor.co.uk/clueless-about-calculators/
https://education.casio.co.uk/calculators/classwiz-product-range/
https://user-iobl2r.cld.bz/Teaching-A-Level-Maths
https://docs.google.com/document/u/0/d/1TtqzRNm_D6gubnPxHoJxd-iAIe3KGPbRE7bMwPpUKXw/mobilebasic?pli=1
Pearson Textbook Corrections - RobotMaths.docxPearson Textbook Corrections - RobotMaths.docx