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rationalize - 分母の有理化
使い方
rationalize(expr)
パラメータ
expr - 多項式の根号式
説明
関数 rationalize は、分母からすべての平方根を取り除き、与えられた式を有理化を試みます。
rationalize は、exp や sin のような超越関数 の中の根号には、働きません。expr ないの、そのような関数への引数となる根号式は、有理化されません。
例
2/(2-sqrt(2));
rationalize(%);
(1+2^(1/3))/(1-2^(1/3));
[ x/(x+sqrt(3)), x/(x+sqrt(1+sqrt(3))),(x+y)/(x*y+sqrt(3)+sqrt(7))];
[(x+y)/(x+sqrt(y)), x*y/(x+sqrt(x+sqrt(3)))];
1/(1+root(sin(1/(1-sqrt(eta))),3));
rationalize( % );
1/(1+(1/(1-sqrt(a)))^(1/3));
参照
sqrt
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