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Crash when Solve for Integral with 15C
09-02-2017, 05:53 AM (This post was last modified: 09-02-2017 05:54 AM by Dieter.)
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RE: Crash when Solve for Integral with 15C
(09-02-2017 02:41 AM)rprosperi Wrote:  Though it is specifically discussed, the manual is not completely clear (to me) about how display mode affects results, but it seems to have a dramatic impact.

Yes. Maybe you should take a look at the respective section in the 15C Advanced Functions Handbook.

(09-02-2017 02:41 AM)rprosperi Wrote:  I would expect a setting with 2 digits of accuracy (FIX 2) would have finished faster than with 4 (SCI 4) since even when set to FIX mode, it switches to SCI mode as needed if the magnitude under/overflows.

The result is about 6 E+91. FIX 2 means two digits after the decimal point, so that's actually 94 significant digits, in other words: it's (more than) full machine precision you're demanding. On the other hand SCI 4 sets only five significant digits which is returned much faster.

(09-02-2017 02:41 AM)rprosperi Wrote:  Perhaps some of the other error and/or endless calculating errors reported above were also affected by the same issue. Try again using SCI 4 mode.

Yes, for a first result I'd say even SCI 2 is fine. If you need more simply repeat the calculation with SCI 4, SCI 6 etc.

Dieter
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RE: Crash when Solve for Integral with 15C - Dieter - 09-02-2017 05:53 AM



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