A full function calculator that includes a virtual paper tape that records all entries and operations made on the calculator. Instead of re-doing an entire operation to check one's work, the user need only review the contents of the papertape. The papertape also simplifies complex calculations since more than one value can be displayed on the papertape at a time and in a variety of formats. Advanced calculations include trigonometric functions, conversion factors, linear and multiple regression, mean, median and mode for single and grouped values, quadratic and cubic equations, loan payments and amortization, compound interest and annuity calculations and area under a normal curve. Memory locations store text and numbers together.
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