For GCSE, AS and A-level courses you will require a scientific calculator. The use of various types of functions on calculators are often restricted in GCSE, AS and A-level papers. If in doubt, check with your teacher or examinations officer that the calculator you intend to purchase is allowed for use with your syllabus.
In general for GCSE a calculator MUST NOT have the following
- retrieval of text or formulae
- QWERTY keyboards
- built-in symbolic algebra manipulations
- symbolic differentiation or integration, language translators
- communication with other machines or the internet.
I would recommend the Casio FX-85 ES calculator as it is easy to use, powerful and excellent value.
For A-Level the Casio FX-991 ES calculator
AS and A-Level Calculators
Generally for AS and A-level you can use a graphics calculator but it MUST NOT have a facility for symbolic algebra, differentiation and/or integration.
I would recommend the Texas TI 83+ calculator
There are some excellent calculators that can do symbolic algebra, differentiation and integration along with many other functions suitable for engineers, surveyors, maths and science professionals.
As a teacher I use the HP 50G calculator
Casio FX-9750GII Graphic Calculator
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