Calculators

In short: A calculator is a handy device for calculating, from the simple four-operations model to the graphing calculator.

In more detail: At school and in training, scientific calculators (Casio, Texas Instruments, Sharp) are usually allowed. For exams the rules of the responsible body apply, so clarify beforehand which models are permitted.

In Depth

Types

• Simple: basic arithmetic.
• Scientific: powers, roots, trigonometry, statistics, fraction and base conversion (binary, hexadecimal).
• Graphing/CAS: draw functions, rearrange terms.

In IT

Binary, octal and hexadecimal conversion (hex codes, bits) and percentage calculation are exam material. Emzett has an online calculator with working steps under /tools.

See also: Bits, Hex Codes, Prüfungsvorbereitung