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The HP-12C is a financial calculator made by Hewlett-Packard (HP) and its successor HP Inc. as part of the HP Voyager series, introduced in 1981. It is HP's longest and best-selling product and is considered the de facto standard among financial professionals.
The HP-12C is a popular financial calculator. It was such a successful model that Hewlett-Packard redesigned it from scratch, [1] added several new functions, and introduced it as the HP 12c Platinum in 2003 as well as the HP 12c Prestige. Over the course of years, several anniversary editions of the calculator were produced as well.
For example, if the yearly percentage rate was 6% (i.e. 0.06), then r would be / or 0.5% (i.e. 0.005). N - the number of monthly payments, called the loan's term, and; P - the amount borrowed, known as the loan's principal. In the standardized calculations used in the United States, c is given by the formula: [4]
The degrees of freedom of the weighted, unbiased sample variance vary accordingly from N − 1 down to 0. The standard deviation is simply the square root of the variance above. As a side note, other approaches have been described to compute the weighted sample variance. [7]
HP-12C: 1981 The finance-centric programmable calculator from the Voyager series introduced in the 1980s. The longest running product in the HP calculator line, it remains in production. Various models exist, the latest in 2008. HP-14B: 1988 Finance calculator with 12 digits precision and algebraic logic. It has 130 functions, 41 keys, and an ...
The HP-10B (F1636A) is a student business calculator introduced in 1987. The model of this calculator proved to compete well with the higher end RPN HP-12C . Two versions of the 10B were produced, the first version came with orange lettering around the keys and used an 1LU7 HP Saturn processor, the later model (in 2000) with teal-green labels ...
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For example, the correct IRR of the following cash flow is 0.20%, but some calculator may give a different result: -11950 4000 3000 5000 Also, some believe that the original "gold" HP-12c calculator has a stronger case, better keys and is faster than the new platinum model.