8 lines
238 B
Plaintext
8 lines
238 B
Plaintext
define(square_root,
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`ifelse(eval($1<0),1,negative-square-root,
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`square_root_aux($1, 1, eval(($1+1)/2))')')
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define(square_root_aux,
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`ifelse($3, $2, $3,
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$3, eval($1/$2), $3,
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`square_root_aux($1, $3, eval(($3+($1/$3))/2))')')
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