More doctests from the book "Calcul mathématique avec Sage"

[Thierry-Dumont]

The attached file provides doctests for examples in the chapter "float" (floating point numbers). Tests pass with 5.11.

Apply only attachment: trac_14320_doctests_from_french_book.patch​.

Upstream: Completely fixed; Fix reported upstream

Component: doctest coverage

Keywords: french book

Author: Thierry Dumont, Paul Zimmermann

Reviewer: Frédéric Chapoton

Merged: sage-5.13.beta3

Issue created by migration from https://trac.sagemath.org/ticket/14320

[Thierry-Dumont]

Attachment: float_doctest.sage.gz

doctets auto generated.

[zimmermann6]

Changed author from Thierry Dumont to Thierry Dumont, Paul Zimmermann

[zimmermann6]

comment:2

I've attached a well-formed patch. I had to modify two things with respect to the book (which was with Sage 5.9), due to some recent changes in RDF:

• I added "abs tol 0.05" somewhere to avoid a failing test with 5.11

• exact-sommation compensee now gives 0.0 with 5.11 (instead of -0.001953125 with 5.9).
  I thus changed to 0.0 in the doctest. This will thus differ from the book, which should be
  updated to 5.11 (adding "abs tol" is not enough).

Paul

[fchapoton]

comment:3

same remark about indentation: should be 4 spaces rather than 2

[zimmermann6]

comment:4

same remark about indentation: should be 4 spaces rather than 2

is it better with the new patch?

Paul

[fchapoton]

comment:5

yes, it is much better that way.

[fchapoton]

comment:6

Let me say that it is good to go.

[fchapoton]

Reviewer: Frédéric Chapoton

[fchapoton]

Changed keywords from none to french book

[jdemeyer]

comment:7

On arando (Linux 32-bit i686):

sage -t --long devel/sage/sage/tests/french_book/float_doctest.py
**********************************************************************
File "devel/sage/sage/tests/french_book/float_doctest.py", line 206, in sage.tests.french_book.float_doctest
Failed example:
    print "exact - sommation classique:", s-ii # abs tol 0.05
Expected:
    exact - sommation classique: -45.5
Got:
    exact - sommation classique: -45.591796875
Tolerance exceeded: 9e-02 > 5e-02
**********************************************************************

[zimmermann6]

comment:8

I will have a look next week, unless someone beats me. However I wonder why the patchbot did not find this before. Did it work before on arando?

Paul

[jdemeyer]

comment:9

It seems the patchbot is having trouble itself... Also, I don't know whether we have any patchbots running on 32-bit i686.

[zimmermann6]

comment:10

Attachment: trac_14320_doctests_from_french_book.patch.gz

I increased the tolerance to 0.1, it should be ok now.

Paul

[jdemeyer]

comment:11

Should be good.

[jdemeyer]

Merged: sage-5.13.beta3