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Errata
Small Errata for Hardcover First
Edition of Wonders of Numbers:
page 205, boxed equation,
Chapter 89, near bottom: "c" should be superscripted
page 358, Chapter 89, 2nd line
in Further Exploring: "c" should be superscripted
page 216, Chapter 95, line 3,
missing upside-down F symbol. Should read "F(24)" not "(24)", where the "F" is
the upside-down symbol. Similarly line 2 should read "Let's define a new
function F(n)."
page 262, figure drawing
error. Line segment misplaced. Figure 114.1 should have a line connecting point
B to the dot directly to the the left instead of the line from the point below
B to the point directly to the left.
page 374, figure drawing
error. Line segment misplaced. Figure 114.1 should have a line connecting point
B to the dot directly to the the left instead of the line from the point below
B to the point directly to the left.
page 94, Equation 10 towards
the bottom of the page is missing an italics "i" before the "sin".
page 379, it says " 9 + 9 +
999 = 1000 " should be " 9/9 + 999 = 1000 "
12 March 2015
http://www.devweb.cl/mathfun
I used to have a webpage where I was posting about recreational mathematics.
As usual, it can be found at archive.org:
https://web.archive.org/web/20100416024912/http://devweb.cl/mathfun/
As usual, it can be found at archive.org:
https://web.archive.org/web/20100416024912/http://devweb.cl/mathfun/
10 March 2015
OC4J: org.apache.xml.dtm.ref.DTMManagerDefault cannot be cast to org.apache.xml.dtm.DTMManager
When using JDK 1.6 the following CastException may be obtained:
org.apache.xml.dtm.ref.DTMManagerDefault cannot be cast to org.apache.xml.dtm.DTMManager
This is because we are using different Xalan.
This was replicated in OC4J 10.1.3.3.0 because we are using different xalan.jar
org.apache.xml.dtm.ref.DTMManagerDefault cannot be cast to org.apache.xml.dtm.DTMManager
This is because we are using different Xalan.
[06/03/2015 11:42:52,105] com.sample.AutenticaAction.execute(AutenticaAction.java:331) - Error = java.lang.ClassCastException: org.apache.xml.dtm.ref.DTMManagerDefault cannot be cast to org.apache.xml.dtm.DTMManager
at org.apache.xml.dtm.DTMManager.newInstance(DTMManager.java:137)
at org.apache.xpath.XPathContext.(XPathContext.java:102)
at org.apache.xpath.jaxp.XPathExpressionImpl.eval(XPathExpressionImpl.java:115)
at org.apache.xpath.jaxp.XPathExpressionImpl.eval(XPathExpressionImpl.java:99)
at org.apache.xpath.jaxp.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:184)
at com.sample.AutenticaAction.selectSingleNode(AutenticaAction.java:59)
at com.sample.AutenticaAction.execute(AutenticaAction.java:130)
at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
This was replicated in OC4J 10.1.3.3.0 because we are using different xalan.jar

