hp40g+.book Page 8 Friday, December 9, 2005 1:03 AM
•Pressing 
displays the list of Program Constants. You can use these in programs that you develop.
•Pressing 
displays a menu of physical constants from the fields of chemistry, physics, and quantum mechanics. You can use these constants in calculations. (pSee “Physical constants” on page
•Pressing 
takes you to the beginning of the MATH menu.
See “Math functions by category” on page
H I N T | When using the MATH menu, or any menu on the |
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| HP 40gs, pressing an alpha key takes you straight to the | ||||
| first menu option beginning with that alpha character. | ||||
| With this method, you do not need to press | first. | |||
| Just press the key that corresponds to the command’s | ||||
| beginning alpha character. |
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| Note that when the MATH menu is open, you can also | ||||
| access CAS commands. You do this by pressing | . |
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| This enables you to use CAS commands on the HOME | ||||
| screen, without opening CAS. See Chapter 14 for details | ||||
| of CAS commands. |
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Program | Pressing | CMDS displays the list of Program |
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commands | Commands. See “Programming commands” on |
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Inactive keys | If you press a key that does not operate in the current | ||||
| context, a warning symbol like this ! appears. There is | ||||
| no beep. |
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| Menus |
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| A menu offers you a choice |
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| of items. Menus are |
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| displayed in one or two |
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| columns. |
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•The 
arrow in the display means more items below.
•The 
arrow in the
display means more items above.
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| Getting started | |||
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