Ci and Si without arguments [SOLVED] - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Ci and Si without arguments [SOLVED] (/thread-5939.html) |
Ci and Si without arguments [SOLVED] - JMB - 03-27-2016 02:22 PM I have found the following behavior of Ci and Si without arguments: In HOME: Ci() returns: -Inf Si() returns: [] In CAS: Ci() returns: -∞ Si() returns: [] So, it seems that Ci() is using 0 as the default argument, but does anyone know the meaning of [] for Si() ? UPDATE. I have found that Ei also has an odd behavior when no arguments are supplied: In HOME and CAS: Ei() returns: Ei RE: Ci and Si without arguments - JMB - 11-01-2018 10:53 AM In the new FW version 2.1.14181 (2018 10 16) all three functions Ci(), Si() and Ei(), return [] both in HOME and CAS. This looks more coherent than the previous behavior. |