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author | Benjamin Peterson <benjamin@python.org> | 2008-07-02 17:30:14 (GMT) |
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committer | Benjamin Peterson <benjamin@python.org> | 2008-07-02 17:30:14 (GMT) |
commit | dcf97b98ec5cad972b3a8b4989001c45da87d0ea (patch) | |
tree | e75bec19409f4d702ad01b9b7bded5991c9b88f7 /Doc/library/cmath.rst | |
parent | f9c98b48bd7d0017d24cd076e2bc879d112b0a7d (diff) | |
download | cpython-dcf97b98ec5cad972b3a8b4989001c45da87d0ea.zip cpython-dcf97b98ec5cad972b3a8b4989001c45da87d0ea.tar.gz cpython-dcf97b98ec5cad972b3a8b4989001c45da87d0ea.tar.bz2 |
Merged revisions 64434-64435,64440-64443,64445,64447-64448,64450,64452,64455,64461,64464,64466,64468 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r64434 | andrew.kuchling | 2008-06-20 18:13:58 -0500 (Fri, 20 Jun 2008) | 1 line
Remove request for e-mail; it's unlikely these classes will be saved
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r64435 | andrew.kuchling | 2008-06-20 18:14:32 -0500 (Fri, 20 Jun 2008) | 1 line
Grammar fixes
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r64440 | andrew.kuchling | 2008-06-21 08:29:12 -0500 (Sat, 21 Jun 2008) | 1 line
Docstring typo
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r64441 | andrew.kuchling | 2008-06-21 08:47:20 -0500 (Sat, 21 Jun 2008) | 1 line
Use repr() for bad input strings; this makes the empty string or binary characters more visible
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r64442 | andrew.kuchling | 2008-06-21 08:48:38 -0500 (Sat, 21 Jun 2008) | 1 line
Docstring correction
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r64443 | georg.brandl | 2008-06-21 09:26:19 -0500 (Sat, 21 Jun 2008) | 2 lines
Documentation fix.
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r64445 | facundo.batista | 2008-06-21 12:30:06 -0500 (Sat, 21 Jun 2008) | 3 lines
Reviewed and updated the documentation. Fixes #3017.
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r64447 | facundo.batista | 2008-06-21 13:58:04 -0500 (Sat, 21 Jun 2008) | 6 lines
Now a from submitted via POST that also has a query string
will contain both FieldStorage and MiniFieldStorage items.
Fixes #1817.
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r64448 | facundo.batista | 2008-06-21 14:48:19 -0500 (Sat, 21 Jun 2008) | 5 lines
In the deprecated functions I added an alert to review
specially a section of the subprocess documentation
that helps with the replacing of those functionss.
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r64450 | georg.brandl | 2008-06-22 04:05:29 -0500 (Sun, 22 Jun 2008) | 2 lines
Turn section references into proper cross-references.
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r64452 | facundo.batista | 2008-06-22 08:36:20 -0500 (Sun, 22 Jun 2008) | 5 lines
Issue #2722. Now the char buffer to support the path string has
not fixed length, it mallocs memory if needed. As a result, we
don't have a maximum for the getcwd() method.
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r64455 | facundo.batista | 2008-06-22 10:27:10 -0500 (Sun, 22 Jun 2008) | 4 lines
Issue 3164. Small fix to don't repeat a comparation
without necessity.
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r64461 | georg.brandl | 2008-06-22 13:11:52 -0500 (Sun, 22 Jun 2008) | 2 lines
#3085: Fix syntax error.
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r64464 | georg.brandl | 2008-06-22 13:31:54 -0500 (Sun, 22 Jun 2008) | 2 lines
Expand docstrings of sqlite3 functions.
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r64466 | georg.brandl | 2008-06-22 14:07:59 -0500 (Sun, 22 Jun 2008) | 2 lines
Write out "phi" consistently.
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r64468 | facundo.batista | 2008-06-22 14:35:24 -0500 (Sun, 22 Jun 2008) | 4 lines
Just returning nothing instead of rising TestSkipped, because
it makes the test fail in the trunk.loewis-sun buildbot.
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Diffstat (limited to 'Doc/library/cmath.rst')
-rw-r--r-- | Doc/library/cmath.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst index 83a220c..2d804c97 100644 --- a/Doc/library/cmath.rst +++ b/Doc/library/cmath.rst @@ -40,9 +40,9 @@ Definition:: In engineering the polar coordinate system is popular for complex numbers. In polar coordinates a complex number is defined by the radius *r* and the phase -angle *φ*. The radius *r* is the absolute value of the complex, which can be +angle *phi*. The radius *r* is the absolute value of the complex, which can be viewed as distance from (0, 0). The radius *r* is always 0 or a positive float. -The phase angle *φ* is the counter clockwise angle from the positive x axis, +The phase angle *phi* is the counter clockwise angle from the positive x axis, e.g. *1* has the angle *0*, *1j* has the angle *π/2* and *-1* the angle *-π*. .. note:: @@ -53,12 +53,12 @@ e.g. *1* has the angle *0*, *1j* has the angle *π/2* and *-1* the angle *-π*. Definition:: - z = r * exp(1j * φ) - z = r * cis(φ) + z = r * exp(1j * phi) + z = r * cis(phi) r := abs(z) := sqrt(real(z)**2 + imag(z)**2) phi := phase(z) := atan2(imag(z), real(z)) - cis(φ) := cos(φ) + 1j * sin(φ) + cis(phi) := cos(phi) + 1j * sin(phi) .. function:: phase(x) |