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simplify/trig - 三角関数を持つ式の簡単化
使い方
simplify(expr, trig)
パラメータ
expr - 任意の数式
説明
simplify/trig 関数は、三角関数を持つ式を簡単化するために使われます。sin(x)^2 + cos(x)^2 = 1 や cosh(x)^2 - sinh(x)^2 = 1 などの等式を当てはめていきます。
この関数は、入力式を、sin(x) と sinh(x) の多項式と判断し、入力式の sin(x) と sinh(x) の次数を 1 にします。
例
simplify(sin(x)^3, trig);
simplify(tan(x)^2, trig);
simplify(1+tan(x)^2, trig);
simplify(cos(2*x)+sin(x)^2);
参照
simplify, combine
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