zoukankan      html  css  js  c++  java
  • java Math.pow

    Math.pow

    /**
         * Returns the value of the first argument raised to the power of the
         * second argument. Special cases:
         *
         * <ul><li>If the second argument is positive or negative zero, then the
         * result is 1.0.
         * <li>If the second argument is 1.0, then the result is the same as the
         * first argument.
         * <li>If the second argument is NaN, then the result is NaN.
         * <li>If the first argument is NaN and the second argument is nonzero,
         * then the result is NaN.
         *
         * <li>If
         * <ul>
         * <li>the absolute value of the first argument is greater than 1
         * and the second argument is positive infinity, or
         * <li>the absolute value of the first argument is less than 1 and
         * the second argument is negative infinity,
         * </ul>
         * then the result is positive infinity.
         *
         * <li>If
         * <ul>
         * <li>the absolute value of the first argument is greater than 1 and
         * the second argument is negative infinity, or
         * <li>the absolute value of the
         * first argument is less than 1 and the second argument is positive
         * infinity,
         * </ul>
         * then the result is positive zero.
         *
         * <li>If the absolute value of the first argument equals 1 and the
         * second argument is infinite, then the result is NaN.
         *
         * <li>If
         * <ul>
         * <li>the first argument is positive zero and the second argument
         * is greater than zero, or
         * <li>the first argument is positive infinity and the second
         * argument is less than zero,
         * </ul>
         * then the result is positive zero.
         *
         * <li>If
         * <ul>
         * <li>the first argument is positive zero and the second argument
         * is less than zero, or
         * <li>the first argument is positive infinity and the second
         * argument is greater than zero,
         * </ul>
         * then the result is positive infinity.
         *
         * <li>If
         * <ul>
         * <li>the first argument is negative zero and the second argument
         * is greater than zero but not a finite odd integer, or
         * <li>the first argument is negative infinity and the second
         * argument is less than zero but not a finite odd integer,
         * </ul>
         * then the result is positive zero.
         *
         * <li>If
         * <ul>
         * <li>the first argument is negative zero and the second argument
         * is a positive finite odd integer, or
         * <li>the first argument is negative infinity and the second
         * argument is a negative finite odd integer,
         * </ul>
         * then the result is negative zero.
         *
         * <li>If
         * <ul>
         * <li>the first argument is negative zero and the second argument
         * is less than zero but not a finite odd integer, or
         * <li>the first argument is negative infinity and the second
         * argument is greater than zero but not a finite odd integer,
         * </ul>
         * then the result is positive infinity.
         *
         * <li>If
         * <ul>
         * <li>the first argument is negative zero and the second argument
         * is a negative finite odd integer, or
         * <li>the first argument is negative infinity and the second
         * argument is a positive finite odd integer,
         * </ul>
         * then the result is negative infinity.
         *
         * <li>If the first argument is finite and less than zero
         * <ul>
         * <li> if the second argument is a finite even integer, the
         * result is equal to the result of raising the absolute value of
         * the first argument to the power of the second argument
         *
         * <li>if the second argument is a finite odd integer, the result
         * is equal to the negative of the result of raising the absolute
         * value of the first argument to the power of the second
         * argument
         *
         * <li>if the second argument is finite and not an integer, then
         * the result is NaN.
         * </ul>
         *
         * <li>If both arguments are integers, then the result is exactly equal
         * to the mathematical result of raising the first argument to the power
         * of the second argument if that result can in fact be represented
         * exactly as a {@code double} value.</ul>
         *
         * <p>(In the foregoing descriptions, a floating-point value is
         * considered to be an integer if and only if it is finite and a
         * fixed point of the method {@link #ceil ceil} or,
         * equivalently, a fixed point of the method {@link #floor
         * floor}. A value is a fixed point of a one-argument
         * method if and only if the result of applying the method to the
         * value is equal to the value.)
         *
         * <p>The computed result must be within 1 ulp of the exact result.
         * Results must be semi-monotonic.
         *
         * @param   a   the base.
         * @param   b   the exponent.
         * @return  the value {@code a}<sup>{@code b}</sup>.
         */
        public static double pow(double a, double b) {
            return StrictMath.pow(a, b); // default impl. delegates to StrictMath
        }

    #################################

  • 相关阅读:
    如果有一天,有个人递过来一支唇油,然后对我说:嘿,弄下你那难受又难看的唇吧!然后我会倾我一生去待这个...
    linux下使用masm通过dosemu及freedos
    回复草儿:呵呵~~嗯在firefox下的展示还不是特别好,有些页面显示不了。叫这个名字的人好像很多哦...
    firefox显示不了QQ空间日志内容的临时解决方法
    语法分析:算术表达式预测分析程序设计
    哈哈,那就找个同名的美女来段美丽传说~链接已做好。
    现在QQ空间不是已经支持其他浏览器的么,昨天我还在linux下用opera看朋友的QQ空间呢。PS:...
    【SQL SERVER】Sql语句使用技巧 优化数据库
    从IL认识关键字(四)
    从IL认识关键字(三)
  • 原文地址:https://www.cnblogs.com/herd/p/15610563.html
Copyright © 2011-2022 走看看