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^ Improved initial writing: 2009-05-21
last updated: 2009-05-25

x^y for complex x and integer y is now computed by repeated squaring. For general y the result is computed by ^y*^.x as before. For example:

   0j1 ^ i.5 4
1 0j1 _1 0j_1
1 0j1 _1 0j_1
1 0j1 _1 0j_1
1 0j1 _1 0j_1
1 0j1 _1 0j_1


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