Axel Vogt

5936 Reputation

20 Badges

20 years, 251 days
Munich, Bavaria, Germany

MaplePrimes Activity


These are Posts that have been published by Axel Vogt

  restart; kernelopts(version);
  Digits:=14:
  2^(32); evalf(%); identify(%);

        Maple 10.06, IBM INTEL NT, Oct 2 2006 Build ID 255401

                              4294967296
                                         10
                          0.4294967296 10

Error, (in isFuncOfTest) numeric exception: overflow

  restart; kernelopts(version);
  #Digits:=15:
  evalf(hypergeom([1.0,3.0],[2.0],1.04+0.1*I));

        Maple 10.06, IBM INTEL NT, Oct 2 2006 Build ID 255401

  Error, (in evalf/hypergeom/one_f_II) invalid assignment to Digits


It should be ~ -27700/841-21375/841*I as floats with good exactness.

Maple Equation

Ref: Kahan (Jan 2007): How Futile are Mindless Assessments of Roundoff in Floating-Point Computation ?

I wanted to know, how Maple behaves on the example given in \2475 of that working paper (where other

systems are considered, mostly Matlab) and thought it might be of interest here in the forum.

> restart; Digits:=16; interface(version);

( 1+ c*10^(n+1) ) / ( 1+ c*10^(n) ): 'limit(%,n=infinity)': '%'=%;

                                        (n + 1)
                                1 + c 10
                      lim       --------------- = 10
                 n -> infinity             n
                                   1 + c 10

However if c = 0 then ...
Can we have a format for posting with

- text only
- fixed font
- full ASCII


When posting code it is a real mess in variable fonts, almost unreadable
and quite often it must contain symbols ( like the 'less than') which is
kicked out by the board software - so HTML with the 'pre' command does
not work.

Or let us know how to do it in a posting FAQ ...

First 13 14 15 16 17 18 Page 15 of 18