There is no specific scientific calculator prescribed for this subject. Any scientific, nonprogrammable calculator is suitable for your studies. Different scientific calculators have different functions and it is up to you to know your calculator. Most scientific calculators have algebraic logic; the operation in an expression can be entered in the calculator in the order in which the expression is read (left to right). The calculator automatically follows the conventional order of operations.
You can setup your calculator to work either in natural display or linear display. Natural display causes fractions, irrational numbers, expressions, and certain functions to be displayed as you see them on paper. Linear display causes fractions and other expressions to be displayed in a line.
When we come across an expression such as 7 + 3 ÷ 10 × 1, it makes a difference how we choose which operations to perform first.
Scientific calculators have been programmed to follow preset mathematical rules. If we press the buttons in a certain order, the calculator does the operations according to the rules that it has been programmed with.

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