Both WP 31S and WP 34S manuals now available for individual POD
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02-22-2015, 09:18 AM
Post: #36
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RE: Both WP 31S and WP 34S manuals now available for individual POD
(02-22-2015 08:59 AM)walter b Wrote: Addendum: Hmmmh, Π and Σ clear all stack levels except X. Though I've no idea why. Pauli? They both call a user routine with the stack filled with the X value. They don't make any attempt to save the initial entry stack (we don't really have the space, especially when they nest) -- this is actually the same behaviour as f' and f", which you've documented as doing exactly this already. It is also the same as solve an integrate -- although these return extra values that hide the stack destruction better. The general rule is that: a system function that calls a user routine exterminates the stack. - Pauli |
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