The Museum of HP Calculators
The Museum of HP Calculators
Some calculator keys can't easily be represented in text. This table translates the strings used in the programs here into HP keytops.
| ASCII Key Code | Typical Key | Meaning |
| -> |
|
Used wherever a calculator would use a right arrow key conversions |
| ÷ |
|
Division. This should be obvious but some browsers display the ÷ code as / |
| / |
|
Division. Used on later calculators that print a / in the listings for division such as the HP-41C |
| ^ |
|
Used wherever a listing would show an upward pointing arrow or a caret. (i.e. can be used in both R^ for roll up and X^Y for XY. |
|
Alpha Enter |
The alpha append symbol on the 42S. In program mode press Alpha and then Enter. (Press Shift K in alpha mode on the HP-41C.) |
| delta |
|
Change in. Typically followed by % or days |
| integrate |
|
Integration |
| mean x |
|
Mean of x values |
| pi |
|
The constant 3.14159... |
| roll dn |
|
Roll the stack down |
| roll up |
|
Roll the stack up |
| sqrt |
|
Square root of X |
| sum |
|
Sum symbol |
| sum+ |
|
Sum add |
| sum- |
|
Sum subtract |
| x!=y or x!=0 |
|
x not equal to y (or 0) test |
| x<>y |
|
exchange x and y |
| x<>I |
|
exchange x and I |
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software library
Go back to
the main exhibit hall
etc.
