[Cfp-interest] updates for Parts 2

Fred J. Tydeman tydeman at tybor.com
Wed Mar 20 20:36:39 PDT 2013


On Wed, 20 Mar 2013 20:10:27 -0700 Jim Thomas wrote:
>
>> 
>> PDF page 29, line 24:  Shift left to align like previous lines.
>> 
>
>Hmm. I don't see this one.

Oops.  Should be PDF page 39, line 24.


>> PDF page 37, lines 14-16.  I do not understand why the lines are not:
>>  954e91         9.54e93
>>  95e92    OR    9.5e93
>>  1e94           1e94
>
>These should be in %e formatting style for printf. Showing the intermediate rounding:
>
>(1, 9543210, 87) -> (1, 9540, 90) -> 9.540e93
>(1, 9543210, 87) -> (1, 9500, 90) -> 9.500e93
>(1, 9543210, 87) -> (1, 10000, 90) -> 1.0000e94
>
>The three preceding lines should be in the same style.

I believe I am confused by 'maximum exponent' and 'maximum quantum exponent'.
I believe that for 'float' type, max exp is 97, while max quant exp is 90.

Perhaps, we need a table of max and min quant exponents.  Either as part 
of table 1 on PDF page 12, or on PDF page 36 before line 5.

---
Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (775) 287-5904      Vice-chair of PL22.11 (ANSI "C")
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