#5093: [with patch, needs review] rewrite fast_float to support more datatypes
------------------------------+---------------------------------------------
Reporter: cwitty | Owner: cwitty
Type: enhancement | Status: assigned
Priority: major | Milestone: sage-3.4.2
Component: basic arithmetic | Keywords:
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Comment(by ncalexan):
I'm having troubles with the domain option:
{{{
ipdb> sincospart2
0.031415926535897932384626433832795028841971693993751058209749445923078164062862090?*u^2
+
128.81577077269348875442992085907054992836460260571058901270931143326149871242219?*u
-
903.2497758091134199678561412713008059118088312456679249412429028830613210260356?
ipdb> sincospart2.parent()
Multivariate Polynomial Ring in u over Real Interval Field with 268 bits
of precision
ipdb> fast_callable(sincospart2)(-1)
-1032.0341306552710107899014356965385608113314621573847628957424648703997415743949?
ipdb> fast_callable(sincospart2, domain=sincospart2.base_ring())(-1)
[.. NaN ..]
ipdb> p sincospart2.dumps()
'x\x9c\x9dsmo\...@\x10\xf6pa\n\x02\x82\x08\xa8\xc8\x8a\xa7\xde\x05hzpo\x184|\xf0%\xe6
\x9a\x8b\xfd\xa4\xb2\xd9\xb6\xdb\xeer\xdb\x97i\xb7\r\xa8\x97\xe8\x074\xfe^\xff\x80\xdb\xe38\xce\x0f&\xca\x97\xcd\xec\xcc<\xcf<;;\xf3u\xc4N\x88G\xf5\x98\x07^\xa2G\xa18\x0eB\x9f\x13\xa1\xfb\xa9\x90\x1c\x9f;0\x15\xd4\xa7\x81\xd4\xf6\xdf\x9e\xfb\xf2\xb0\xc3m\xa9A\xa1\xfc\r\xfe\x99*\xcf\xc0\x1e\rh\xccm-\r"nw\x04\xc5C\xc4\xed\xa1\x04\x9cU4\xb8\\\x1a\xe6\x8e\xa9"\xf1#\x97k\x18\xdb\xea")\xc6m\xe5{\x1dH\x1agD\xbc\xe4T88\xa3q\xc2\xc3\xc0\xd0\xe0\xca\xfed\xe1\xe7\xf76\\m\x15\xccBz\x02\xa3\x7f\x11\xaa\xd0>\x0ec\x87\xc6\xda;e\xbe\xe9Y0\xa6\x9ev\xad\x0b\xe3%s\x11\x0f\xdc\x18\'\n\x9d\n\x12\xe3D\xc6\xa0\x99#N\x04\x13\xe6\xccpF@|\n\x93\xe6\xb8C\xbd\x98f\x82\x1e\xc1us\x0cc\'\xb41\x86)\xf3\x97\xf6<\x0fP\xa4\x82J*E*\x83\xdb\xa1\x17\x93\x88q\x1b\x95\x06\xb02\xca\x85\xa1\x9e0UT\xd7\xb4=*QQ\xc5KG\x07\xa4\x8c\x9e"\x82\r\xb4\x86t]W\'\xc1\x9f\x83\x8dJw\xbd\x88$\xa3\x01*\xaa\x14\xb4\x83\x8e\x0e,\xb4\xf3\xf4\x19\x1a\x80v\xfa\xa6U.*fm\x98\xed<@\x02\x07\x15?(Y\x89L>
C1
\xae\x90\xc1\x93\xb3**\xdb\xea\xd7\xcb\xcb\xaf\xe7~\xbev\xe6\xcf\xad\xdc\xc5\xd13u\xe5zQ\x83isi\xb8E>\xb1\x89j\xe2\xf1f\xaf\x8b3\xe6\xd8\xab6\xcd\xf6T\xa7n\x98\xb3\xc3y\x82\x06\x9ed0\xab>p\xd4\x12\xa1\xddI`\x8e\xe5\x1fs\xb3\x0b\xf3%\xa6\xb1\t\xf6G\xa3o\xb1)6\xcdf\xd8\r\xa6
l\xael\xce\xffY\xd5\xf3I\xaf\xe2\x829\xbe\xda\xc7\xac\xc2bj\x9d\xc0\x12[`\xca\x90m\xb8\xdd\x85;\xe6\xf2\xf0X\x9e\xed\x00>3\xe0\xee_&i\xb0\x18>\xe9P\x9c3<\xef\xad\xc9r\x17\xee\x95\xfe\t\xf3\xe2]\x1a\t\xaa\xc1J\xb7UP\xa3\x8b\xfe{\xfe_\xf4\xb5\x9e\xaf\xc1}v\xd5\xfc\xf2~#\xd1\x1b\x8d,\xecH;\x8e\xac\x0e\xa7\xd6\xa1\xbb%\x03\xe0n\xdc\x14\xec\x90\x1f\x92\x86\xbbE\xea\xb4\x11n\xd6\x9a$
lS$\xbcaEUc\xb7\xa2\xbe\x18]\x0c\x1e\x1a\n\xfe\xb1\x85~\xb4a\x95\xadt\xe1A\xebR\xab\x90\xf4^Vd\xb9\xaeO\xef\xab\xba\x01[V\xad#\xa9\xb1\xed\xdb\xf6v\x85Vi5\xdc\xce8\xa4\xae\x1bZ\x95&\x87\x8a\xdc\xce`3r\x1c+\xad\xd4\x84\xeb\xd6S?\xed\xcb\xba\x10:\xa8\x0eT=\xccU=R\xaaFNU=f\xa7\xdd\xaa\xe8F\xcd\xc9x\xd3\xe2\xb4N\xeb\x91\xd1\x902\xde\xf2|\x11\xb9U\x03\x1a\xb1\xa8\xd6\xa2\xcc\xf3,;\x12P\xb7djd^\x95\xc8\x0eo\xeen\xf4d]\x0c~h(\xf8\xa9\xaeRz\xd2\x86r\xf2\xdd\xd2\x7f\x03\xd6\r\xef\xde'
}}}
Perhaps that loads/dumps string can help.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5093#comment:15>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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