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  • Committer: William Grant
  • Date: 2010-02-23 08:48:09 UTC
  • mfrom: (1673 trunk)
  • mto: This revision was merged to the branch mainline in revision 1674.
  • Revision ID: grantw@unimelb.edu.au-20100223084809-du6dvsxrjhw15ytr
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<exercise name = "Fibonacci numbers">
 
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    <desc>Write a function <code>fib(n)</code> which returns the nth fibonacci
 
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        number.</desc>
 
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    <partial>
 
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<![CDATA[
 
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def fib(n):
 
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  # Write your function here.
 
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]]>
 
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    </partial>
 
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    <solution>
 
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<![CDATA[
 
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def fib(n):
 
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  import numpy
 
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  return int((numpy.matrix([[0, 1], [1, 1]], dtype='object')**(n-1))[1,1])
 
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]]>
 
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    </solution>
 
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    <case name="Low n" function="fib">
 
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        <arg value="10" />
 
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        <function desc="Match">int</function>
 
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    </case>
 
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    <case name="First number" function="fib">
 
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        <arg value="1" />
 
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        <function desc="Match">int</function>
 
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    </case>
 
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    <case name="Zeroth number" function="fib">
 
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         <file name="patch.py">
 
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<![CDATA[
 
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fib_zero = 0 
 
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]]>
 
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        </file>
 
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        <arg value="0" />
 
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        <function desc="Match">int</function>
 
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    </case>
 
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    <case name="High number" function="fib">
 
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        <arg value="30" />
 
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        <function desc="Match">int</function>
 
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    </case>
 
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    <case name="Very high number" function="fib">
 
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        <arg value="1000" />
 
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        <function desc="Match">int</function>
 
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    </case>
 
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</exercise>
 
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