#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):
For Jason Grout, the problems I'm having with types and zero:
{{{
ipdb> p sincospart2
0
ipdb> p type(sincospart2)
<class
'sage.rings.polynomial.multi_polynomial_element.MPolynomial_polydict'>
ipdb> p sincospart2.parent()
Multivariate Polynomial Ring in u over Real Interval Field with 268 bits
of precision
ipdb> fast_callable(sincospart2)(-1)
0
ipdb> type(fast_callable(sincospart2)(-1))
<type 'int'>
ipdb> (sincospart2)(-1)
0
ipdb> type((sincospart2)(-1))
<type 'sage.rings.real_mpfi.RealIntervalFieldElement'>
ipdb> dumps(sincospart2)
'x\x9c\x8dsmo\...@\x10u\n4d[\xda\xb4\xa5\xb4\x05\n\xab\xca\x87d-v\xca\x11\xa5=u
D+\x90\xc5\xde\xaa\xae\xd6\xf6\xe0]\xc5^gl\'J\x85"\xc1!\x95\xf8\xbd\xfc\x01\xc6Q>\xdcC%.\xd6\xec\x9b\xf7\xde\x8cgw~\xad\x04\xb9\x8a\xc0\xcd\x8c\x8dr\xb7\x9f\xc6\xb76M\x8c\x8a\xddd\x10\x17F.\x01\t1$`\x0bv\xf5m\x89\x95\xe9\xd0\x04\x05\xc3Z\xfb7\xfe\xb7U\xc9\x90\x11X\xc8L\xc0\x06\xb6o\x82^\x0c\xb2b\xecU\x08rx\xca\xf0Q\xab\xea\x9d\x01\x99$\xfd\x1f\x86I\x19\xd0\xa1\x00)=\xc2>\xdb\x02\xb2\xa1\x8a?\x1a\x88C9\x84,7\xa9\xed0||\xb5^\xfbs\xe7\xe1\x93/5Q\x1bLp\xf5\x81FI\x9d\xc84\x0b!c\xdf)\xfc:\x8d\xb0N\xbf\xf6t\x8c\x8d\x96\xd8\x97\x0bX\xca\x9c\xd4\x83Xe2/2db%\xec\xe3\x9ahV\x19V%\x80\xeb\xa2\x11B\x94\xc10\x86\x11>\x13u)\xc34\x90\x127\xc4_vQ&\x80S\x92Z\x05N\x0c\x13\xa4Q\xa6\xfa\xda\x04\xbc\xb5\x90\xb5y\xd9\x18\x9f6FE]\xc6.\xa1\xe0\x0e\xe5[\xa3\x1b\xd5\xe6g\\\xc9\x0e?\xe6\xae\xeb\xd2W\xc9\x9f\xf6\xdd\xe9\xf8\xc4\xe1\x85\x06\xcb\x1d\xa2\xf0.\x1f\xdd\xf8\xbc{v\xce\x17\xa2\xee,\xf4\xdb\x0e9\xb3\xaa\xdb2\xa1l\xc8\x9dkj+/\xf2k\xde!\x07nHi?\xcc\xab\x10\xdb\x9f\xd5+\xcb\x9f\x94\xb89\x9e\xe3eTB\x86\x9f\xd3\xd1\xb8\x0e\xc3MqP\x1dQ\xa2\x02EC\xbc}?\x9dbS\xd4?y0\xbc\xa4Im\x89\xed*/\x06\x1b\x15\x1a\xb7\xe9\x02W\xfd8\rz9\xee\xe8\xf2b\x9e\x8fq\xb7\xa5\x99^\xd3\xf7\x06\xfdBo\xe8M\xdd\xd4[\x9a$z\xa7-v\xefW\x8d\x125\xad\xb8\'\x1aG3\xcd\x11\xee\x0f\xfc\t\x1e\xe8=MA\xe1\xe1\xcb1\xbe\x12\x87\xd5g9\xdf\x019\x0f\xf0\xf5\x03/i\xb1\x18\x89\xea\x81,\x1d.\xa6kr8\xc67\x13\x0f\xdf\xe6w\xbe\xfb\x0f\x14^3!'
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5093#comment:18>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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