Errata

Errata for SciPy and NumPy

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version	Location	Description	Submitted By	Date submitted	Date corrected
ePub	Page all All electronic versions of the book	A customer who bought the book (both print and electronic) is reporting that the epub and mobi formats are have sections in foreign languages and titles look strange. It sounds like some kind of bug in the conversion process? The customer is John Gizis (@johngizis on Twitter). Maybe it would be good to get in contact with him to see what the problem is? Update: This has just been confirmed by another customer with the ePub format. Hence, this is not an isolated problem.	Eli Bressert	Nov 15, 2012	Nov 16, 2012
ePub	Page vi Chapter headings	In note that an erratum along these lines has already been noted. I haven't found whole sections of the book not in English (but I haven't looked through the whole eBook). I bought the ebook version and the mobi and epub files seem to have a few bits and pieces in what I think is Polish. The PDF looks fine. Instead of Chapter 1 I have Rozdzial 1. Introduction. Also at the end of the conventions section at the start of the book (just before "Using Code Examples" the text for suggestion/general note and for warning or caution are also not in English (looks like its probably polish again). Comparing the PDF and the mobi format it looks like this is where the PDF has graphical icons.	Simon Ellingsen	Nov 16, 2012	Nov 16, 2012
Other Digital Version	6	Comments in the example suggest that arange(100) will generate the numbers 0 to 100. In fact, it will generate numbers 0 to 99. The comment for arange(10,100) has the same error. Note from the Author or Editor: In section 2.1.1, in the first code example, change # What if we want to create an array going from 0 to 100? to # What if we want to create an array going from 0 to 99? Do the same for the following commented line in the same code example: # Or 10 to 100 ? to # Or 10 to 99?	Darius Sullivan	Nov 20, 2012	Jan 31, 2013
Printed	Page 7 the bottom most example.	The line in question is: >>> arr3d = np.reshape(arr1s, (10, 10, 10)) Should read: >>> arr2d = np.reshape(arr1d, (10, 10, 10)) Note from the Author or Editor: On page seven of the book, eighth line of the code sample, the following needs to be changed. arr3d = np.reshape(arr1s, (10, 10, 10)) to arr3d = np.reshape(arr1d, (10, 10, 10))	Anonymous	Dec 10, 2012	Jan 31, 2013
PDF	Page 9	Sample code at the top of the page contains error Should be recarr['Integers'] instead of recarr('Integers') in the book Note from the Author or Editor: In section 2.1.2, the second to last line of the code text change recarr('Integers') to recarr['Integers'].	Anonymous	Nov 27, 2012	Jan 31, 2013
Printed, PDF, ePub, Mobi, Safari Books Online	Page 11 The third chunk of code on the top half of the page.	Line in question: compound_index = (img1 > 3) & (img1 < 7) should be: compound_index = (img1 >2) & (img1 < 6) Note from the Author or Editor: This is typo present in both the printed and ebook formats. Please do the respective change in the code example. change # Let's filter out all values larger than 2 and less than 6 index1 = img1 > 2 index2 = img1 < 6 compound_index = index1 & index2 to # Let's filter out all values larger than 3 and less than 7 index1 = img1 > 3 index2 = img1 < 7 compound_index = index1 & index2	Anonymous	Dec 16, 2012	Feb 01, 2013
Printed, PDF, ePub, Mobi, Safari Books Online, Other Digital Version	Page 12 end of 3rd paragraph of text	I think as easily and quickly as with numpy.readtxt. should be as easily and quickly as with numpy.loadtxt. Note from the Author or Editor: The errata is correct. Please change the sentence as the reader suggested. The sentence is the last sentence in the 2nd paragraph on page 12 (print version). Change "as easily and quickly as with numpy.readtxt." to "as easily and quickly as with numpy.loadtxt."	Scott	Dec 11, 2012	May 29, 2013
PDF	Page 13 first section of code	The dtype= in loadtxt() needs {} braces dtype='names': ('ID', 'Result', 'Type'), 'formats': ('S4', 'f4', 'i2')) should be dtype={'names': ('ID', 'Result', 'Type'), 'formats': ('S4', 'f4', 'i2')}) Note from the Author or Editor: This has been fixed in the book update.	Scott	Dec 11, 2012	Feb 01, 2013
Printed, PDF, ePub	Page 17 Top of section	The section in the Scipy Chapter titled "Optimization and Minimization" should be changed to just "Optimization". The error is minor, but it should be corrected.	Eli Bressert	Nov 15, 2012	Jan 31, 2013
PDF	Page 20 second code listing	# Accessing the columns is achieved in the same way, # which is the bottom row. should read: # Accessing the rows is achieved in the same way, # which is the bottom row. (page 10 printed page numbers, page 20 in pdf) Note from the Author or Editor: On page 10 of the printed text (section 2.1.3) there is a typo. # Accessing the columns is achieved in the same way, # which is the bottom row. Should be changed to # Accessing the rows is achieved in the same way, # which is the bottom row.	B.Plank	Mar 09, 2013
PDF, ePub	Page 29 Code sample at bottom of the page	Sample code should be "from scipy.stats import norm" instead of "import scipy.stats import norm" Note from the Author or Editor: On page 29 the example code, second line, should be "from scipy.stats import norm" instead of "import scipy.stats import norm".	Anonymous	Dec 03, 2012	Jan 31, 2013