Ethiopian multiplication: Difference between revisions
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<pre>*Main> ethiopicmult 17 34 |
<pre>*Main> ethiopicmult 17 34 |
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578</pre> |
578</pre> |
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=={{header|HicEst}}== |
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<lang hicest> WRITE(Messagebox) ethiopian( 17, 34 ) |
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END |
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FUNCTION ethiopian(x, y) |
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ethiopian = 0 |
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left = x |
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right = y |
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DO i = x, 1, -1 |
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IF( isEven(left) == 0 ) ethiopian = ethiopian + right |
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IF( left == 1 ) RETURN |
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left = halve(left) |
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right = double(right) |
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ENDDO |
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END |
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FUNCTION halve( x ) |
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halve = INT( x/2 ) |
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END |
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FUNCTION double( x ) |
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double = 2 * x |
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END |
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FUNCTION isEven( x ) |
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isEven = MOD(x, 2) == 0 |
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END </lang> |
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=={{header|J}}== |
=={{header|J}}== |
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