[Tutor] i need help on builtin function math
wilson edgar
babyboy@oninet.pt
Thu, 29 Mar 2001 04:26:50 -0800
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why don't you try this:
>>> import math
>>> a =3D 0
>>> b =3D math.sqrt(a)
>>> print b
0.0
>>>=20
or if just want to use the sqrt function:
>>> from math import sqrt
>>> a =3D 0
>>> b =3D sqrt(a)
>>> print b
0.0
the pow function is part of the builtin functions.
it would be a good idea for you to read about the namespaces
HTH
wilson edgar
----- Original Message -----=20
From: Marcus Konermann=20
To: tutor@python.org=20
Sent: Wednesday, March 28, 2001 3:29 PM
Subject: [Tutor] i need help on builtin function math
hello !=20
i want to use the sqrt() function of the builtin funtion math in that =
kind:=20
import math=20
...=20
a=3D0=20
a=3Dsqrt(whatever)=20
and than a NameError: sqrt occured and i don=B4t know why ? Is it =
depending on the OS (i use Windows98 and the pywin editor). Other =
functions, like pow(), from the math module are working.=20
Can anyone help me with my problem ?=20
thank=B4s a lot=20
greetings=20
Marcus=20
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<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>why don't you try this:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>>>> import =
math<BR>>>> a =3D=20
0<BR>>>> b =3D math.sqrt(a)<BR>>>> print=20
b<BR>0.0<BR>>>> </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>or if just want to use the sqrt=20
function:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>>>> from math import =
sqrt<BR>>>>=20
a =3D 0<BR>>>> b =3D sqrt(a)<BR>>>> print =
b<BR>0.0</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>the pow function is part of the builtin =
functions.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>it would be a good idea for you to read =
about the=20
namespaces</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>HTH</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>wilson edgar</FONT></DIV></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:m_konermann@gmx.de" =
title=3Dm_konermann@gmx.de>Marcus=20
Konermann</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:tutor@python.org"=20
title=3Dtutor@python.org>tutor@python.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, March 28, 2001 =
3:29=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Tutor] i need help on =
builtin=20
function math</DIV>
<DIV><BR></DIV>hello !=20
<P>i want to use the sqrt() function of the builtin funtion math in =
that kind:=20
<P><I>import math</I> <BR><I>...</I> <BR><I>a=3D0</I>=20
<BR><I>a=3Dsqrt(whatever)</I>=20
<P>and than a <B>NameError: sqrt</B> occured and i don=B4t know why ? =
Is it=20
depending on the OS (i use Windows98 and the pywin editor). Other =
functions,=20
like pow(), from the math module are working. <BR>Can anyone help me =
with my=20
problem ?=20
<P>thank=B4s a lot <BR>greetings <BR>Marcus =
</P></BLOCKQUOTE></BODY></HTML>
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