## Model | ## hp 6s | ## hp 30s | ## hp 20s | |||

Battery Type | Solar | 2 x LR44 | 3 x LR44 | |||

Display | 1 line x 10 char. LCD | 7x5 dot matrix, 2 lines | 1 line x 12 char. LCD | |||

Memory- RAM/ROM | 3 + statistics registers | 10 memory registers | n/a | |||

Sample Std deviation/ mean/ weighted mean | Standard deviation and Mean only | No | n/a | |||

Forecasting, correlation coefficient | n/a | n/a | No | |||

Built-in functions | Over 66 | Over 66 | Over 150 | |||

Customization Method | None | None | Keystroke | |||

Clock, calendar, appointments and alarms | No | n/a | No | |||

Statistical analysis | 1 Variable Cumulative | Yes | Cumulative | |||

Base conversions and arithmetic | Yes | No | Yes | |||

Bit, Boolean operations | Yes | No | No | |||

Fractions | Yes | Yes | No | |||

Linear regression, combinations, permutations | No | Yes | Yes | |||

notepad | No | No | n/a | |||

SUM x, SUM x 2, SUM y, SUM y 2, SUM xy | X variables only | No | Yes | |||

Trig., Hyperbolics, HPSolve (root finder) | Trig., Hyper only | Yes | Trig., Hyper only | |||

Unit conversions | No | Yes | Yes | |||

Updated On: 13.03.23