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Home » + Scientific Calc » Comparison Chart - hp9s, hp30s, hp33s »
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Model |
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hp 6s |
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hp 30s |
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hp 20s |
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| Battery Type |
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Solar |
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2 x LR44 |
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3 x LR44 |
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| Display |
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1 line x 10 char. LCD |
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7x5 dot matrix, 2 lines |
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1 line x 12 char. LCD |
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| Memory- RAM/ROM |
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3 + statistics registers |
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10 memory registers |
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n/a |
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| Sample Std deviation/ mean/ weighted mean |
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Standard deviation and Mean only |
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No |
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n/a |
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| Forecasting, correlation coefficient |
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n/a |
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n/a |
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No |
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| Built-in functions |
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Over 66 |
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Over 66 |
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Over 150 |
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| Customization Method |
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None |
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None |
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Keystroke |
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| Clock, calendar, appointments and alarms |
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No |
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n/a |
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No |
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| Statistical analysis |
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1 Variable Cumulative |
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Yes |
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Cumulative |
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| Base conversions and arithmetic |
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Yes |
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No |
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Yes |
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| Bit, Boolean operations |
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Yes |
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No |
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No |
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| Fractions |
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Yes |
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Yes |
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No |
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| Linear regression, combinations, permutations |
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No |
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Yes |
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Yes |
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| notepad |
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No |
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No |
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n/a |
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| SUM x, SUM x 2, SUM y, SUM y 2, SUM xy |
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X variables only |
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No |
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Yes |
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| Trig., Hyperbolics, HPSolve (root finder) |
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Trig., Hyper only |
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Yes |
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Trig., Hyper only |
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| Unit conversions |
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No |
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Yes |
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Yes |
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