what is the function of the numeric keypad
Numeric keypad Numeric keypads are useful for entering long sequences of numbers quickly, for example in spreadsheets, financial/accounting programs, and calculators. Input in this style is similar to a calculator or adding machine.
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
Bracket Forms include round (also called "parentheses"), square, curly (also called "braces"), and angle brackets (also called "chevrons"); and various other pairs of symbols.
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