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/**
* //ÊÊÓñ¾ÎĵµES5ϵͳ°²×¿ JavaScriptÒýÇæRhino
* Êýѧ·½·¨È«¼¯
* ÔËÐл·¾³: Android + Rhino 1.7.13 + ES5
*/

// ¶¨ÒåÊýѧ¶ÔÏó
var Êýѧ = {};

/**
* ¶þΪµ×µÄeµÄ¶ÔÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»Ø¶þΪµ×µÄeµÄ¶ÔÊý
*/
Êýѧ.__¶þΪµ×µÄeµÄ¶ÔÊý = function() {
return Math.LOG2E;
};

/**
* ¶þµÄƽ·½¸ù
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»Ø¶þµÄƽ·½¸ù
*/
Êýѧ._¶þµÄƽ·½¸ù = function() {
return Math.SQRT2;
};

/**
* eΪµ×µÄ×ÔÈ»¶ÔÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Òª¼ÆËã×ÔÈ»¶ÔÊýµÄÊý×Ö
* @returns {number|null} ·µ»Ø×ÔÈ»¶ÔÊýÖµ»ònull
*/
Êýѧ.eΪµ×µÄ×ÔÈ»¶ÔÊý = function(x) {
try {
if (typeof x !== "number" || isNaN(x) || x <= 0) return null;
return Math.log(x);
} catch (e) {
return null;
}
};

/**
* eµÄx´ÎÃÝ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Ö¸Êý
* @returns {number|null} ·µ»ØeµÄx´ÎÃÝ»ònull
*/
Êýѧ.eµÄx´ÎÃÝ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.exp(x);
} catch (e) {
return null;
}
};

/**
* ¼ÆËãxÓëyµÄ»¡¶È
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} y - y×ø±ê
* @param {number} x - x×ø±ê
* @returns {number|null} ·µ»Ø»¡¶ÈÖµ»ònull
*/
Êýѧ.xÓëyµÄ»¡¶È = function(y, x) {
try {
if (typeof x !== "number" || typeof y !== "number" || isNaN(x) || isNaN(y)) return null;
return Math.atan2(y, x);
} catch (e) {
return null;
}
};

/**
* ÉÏÈ¡Õû
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - ÒªÉÏÈ¡ÕûµÄÊý×Ö
* @returns {number|null} ·µ»ØÉÏÈ¡ÕûºóµÄÖµ»ònull
*/
Êýѧ.ÉÏÈ¡Õû = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return Math.ceil(num);
} catch (e) {
return null;
}
};

/**
* ÏÂÈ¡Õû
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - ÒªÏÂÈ¡ÕûµÄÊý×Ö
* @returns {number|null} ·µ»ØÏÂÈ¡ÕûºóµÄÖµ»ònull
*/
Êýѧ.ÏÂÈ¡Õû = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return Math.floor(num);
} catch (e) {
return null;
}
};

/**
* ¶þµÄƽ·½¸ùµÄµ¹Êý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»Ø¶þµÄƽ·½¸ùµÄµ¹Êý
*/
Êýѧ.¶þµÄƽ·½¸ùµÄµ¹Êý = function() {
return Math.SQRT1_2;
};

/**
* ÓàÏÒ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - »¡¶ÈÖµ
* @returns {number|null} ·µ»ØÓàÏÒÖµ»ònull
*/
Êýѧ.ÓàÏÒ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.cos(x);
} catch (e) {
return null;
}
};

/**
* ±£ÁôСÊýλÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Òª´¦ÀíµÄÊý×Ö
* @param {number} digits - ±£ÁôµÄСÊýλÊý
* @returns {number|null} ·µ»Ø´¦ÀíºóµÄÊý×Ö»ònull
*/
Êýѧ.±£ÁôСÊýλÊý = function(num, digits) {
try {
if (typeof num !== "number" || typeof digits !== "number" ||
isNaN(num) || isNaN(digits) || digits < 0) return null;
return Number(num.toFixed(digits));
} catch (e) {
return null;
}
};

/**
* Ê®µÄ×ÔÈ»¶ÔÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»ØÊ®µÄ×ÔÈ»¶ÔÊý
*/
Êýѧ.Ê®µÄ×ÔÈ»¶ÔÊý = function() {
return Math.LN10;
};

/**
* Ë«ÇúÕýÇÐÖµ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Òª¼ÆËãË«ÇúÕýÇеÄÊý×Ö
* @returns {number|null} ·µ»ØË«ÇúÕýÇÐÖµ»ònull
*/
Êýѧ.Ë«ÇúÕýÇÐÖµ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.tanh(x);
} catch (e) {
return null;
}
};

/**
* ·´ÓàÏÒ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Òª¼ÆËã·´ÓàÏÒµÄÊý×Ö
* @returns {number|null} ·µ»Ø·´ÓàÏÒÖµ»ònull
*/
Êýѧ.·´ÓàÏÒ = function(x) {
try {
if (typeof x !== "number" || isNaN(x) || x < -1 || x > 1) return null;
return Math.acos(x);
} catch (e) {
return null;
}
};

/**
* ·´ÕýÇÐ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Òª¼ÆËã·´ÕýÇеÄÊý×Ö
* @returns {number|null} ·µ»Ø·´ÕýÇÐÖµ»ònull
*/
Êýѧ.·´ÕýÇÐ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.atan(x);
} catch (e) {
return null;
}
};

/**
* ·´ÕýÏÒ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - Òª¼ÆËã·´ÕýÏÒµÄÊý×Ö
* @returns {number|null} ·µ»Ø·´ÕýÏÒÖµ»ònull
*/
Êýѧ.·´ÕýÏÒ = function(x) {
try {
if (typeof x !== "number" || isNaN(x) || x < -1 || x > 1) return null;
return Math.asin(x);
} catch (e) {
return null;
}
};

/**
* ȡСÊý²¿·Ö
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - ҪȡСÊý²¿·ÖµÄÊý×Ö
* @returns {number|null} ·µ»ØСÊý²¿·Ö»ònull
*/
Êýѧ.ȡСÊý = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return num - Math.floor(num);
} catch (e) {
return null;
}
};

/**
* È¡Õû
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - ҪȡÕûµÄÊý×Ö
* @returns {number|null} ·µ»ØÕûÊý²¿·Ö»ònull
*/
Êýѧ.È¡Õû = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return Math.trunc(num);
} catch (e) {
return null;
}
};

/**
* È¡×î´óÖµ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {...number} nums - Òª±È½ÏµÄÊý×Ö
* @returns {number|null} ·µ»Ø×î´óÖµ»ònull
*/
Êýѧ.È¡×î´óÖµ = function() {
try {
if (arguments.length === 0) return null;
for (var i = 0; i < arguments.length; i++) {
if (typeof arguments !== "number" || isNaN(arguments)) return null;
}
return Math.max.apply(null, arguments);
} catch (e) {
return null;
}
};

/**
* È¡×îСֵ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {...number} nums - Òª±È½ÏµÄÊý×Ö
* @returns {number|null} ·µ»Ø×îСֵ»ònull
*/
Êýѧ.È¡×îСֵ = function() {
try {
if (arguments.length === 0) return null;
for (var i = 0; i < arguments.length; i++) {
if (typeof arguments !== "number" || isNaN(arguments)) return null;
}
return Math.min.apply(null, arguments);
} catch (e) {
return null;
}
};

/**
* ËÄÉáÎåÈë
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - ÒªËÄÉáÎåÈëµÄÊý×Ö
* @returns {number|null} ·µ»ØËÄÉáÎåÈëºóµÄÖµ»ònull
*/
Êýѧ.ËÄÉáÎåÈë = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return Math.round(num);
} catch (e) {
return null;
}
};

/**
* Ô²ÖÜÂÊ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»ØÔ²ÖÜÂÊ
*/
Êýѧ.Ô²ÖÜÂÊ = function() {
return Math.PI;
};

/**
* ×Ö·ûתÊý×Ö
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {string} str - Ҫת»»µÄ×Ö·û´®
* @returns {number|null} ·µ»Øת»»ºóµÄÊý×Ö»ònull
*/
Êýѧ.×Ö·ûתÊý×Ö = function(str) {
try {
if (typeof str !== "string") return null;
var num = Number(str);
return isNaN(num) ? null : num;
} catch (e) {
return null;
}
};

/**
* ƽ·½¸ù
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Òª¼ÆËãƽ·½¸ùµÄÊý×Ö
* @returns {number|null} ·µ»Øƽ·½¸ù»ònull
*/
Êýѧ.ƽ·½¸ù = function(num) {
try {
if (typeof num !== "number" || isNaN(num) || num < 0) return null;
return Math.sqrt(num);
} catch (e) {
return null;
}
};

/**
* ¸ñʽ»¯³¤¶È
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Òª¸ñʽ»¯µÄÊý×Ö
* @returns {string|null} ·µ»Ø¸ñʽ»¯ºóµÄ×Ö·û´®»ònull
*/
Êýѧ.¸ñʽ»¯³¤¶È = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return num.toString();
} catch (e) {
return null;
}
};

/**
* ÕýÇÐ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - »¡¶ÈÖµ
* @returns {number|null} ·µ»ØÕýÇÐÖµ»ònull
*/
Êýѧ.ÕýÇÐ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.tan(x);
} catch (e) {
return null;
}
};

/**
* ÕýÏÒ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} x - »¡¶ÈÖµ
* @returns {number|null} ·µ»ØÕýÏÒÖµ»ònull
*/
Êýѧ.ÕýÏÒ = function(x) {
try {
if (typeof x !== "number" || isNaN(x)) return null;
return Math.sin(x);
} catch (e) {
return null;
}
};

/**
* ËãÊõ³£Á¿e
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»ØËãÊõ³£Á¿e
*/
Êýѧ.ËãÊõ³£Á¿e = function() {
return Math.E;
};

/**
* ¾ø¶ÔÖµ
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Òª¼ÆËã¾ø¶ÔÖµµÄÊý×Ö
* @returns {number|null} ·µ»Ø¾ø¶ÔÖµ»ònull
*/
Êýѧ.¾ø¶ÔÖµ = function(num) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return Math.abs(num);
} catch (e) {
return null;
}
};

/**
* תСÊý×Ö·û
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Ҫת»»µÄÊý×Ö
* @param {number} [fractionDigits] - СÊýλÊý
* @returns {string|null} ·µ»Øת»»ºóµÄ×Ö·û´®»ònull
*/
Êýѧ.תСÊý×Ö·û = function(num, fractionDigits) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return num.toFixed(fractionDigits);
} catch (e) {
return null;
}
};

/**
* תָÊý¼ÆÊý·¨
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} num - Ҫת»»µÄÊý×Ö
* @param {number} [fractionDigits] - СÊýλÊý
* @returns {string|null} ·µ»Øת»»ºóµÄ×Ö·û´®»ònull
*/
Êýѧ.תָÊý¼ÆÊý·¨ = function(num, fractionDigits) {
try {
if (typeof num !== "number" || isNaN(num)) return null;
return num.toExponential(fractionDigits);
} catch (e) {
return null;
}
};

/**
* Ëæ»úСÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} min - ×îСֵ
* @param {number} max - ×î´óÖµ
* @returns {number|null} ·µ»ØËæ»úСÊý»ònull
*/
Êýѧ.Ëæ»úСÊý = function(min, max) {
try {
if (typeof min !== "number" || typeof max !== "number" || isNaN(min) || isNaN(max)) return null;
return Math.random() * (max - min) + min;
} catch (e) {
return null;
}
};

/**
* Ëæ»úÕûÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @param {number} min - ×îСֵ
* @param {number} max - ×î´óÖµ
* @returns {number|null} ·µ»ØËæ»úÕûÊý»ònull
*/
Êýѧ.Ëæ»úÕûÊý = function(min, max) {
try {
if (typeof min !== "number" || typeof max !== "number" || isNaN(min) || isNaN(max)) return null;
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
} catch (e) {
return null;
}
};

/**
* ÁãÖÁÒ»Ëæ»úÊý
* @setting ROOT ´úÀí¼¤»î ÎÞÕÏ°­ ¼üÊóÓ²¼þ
* @returns {number} ·µ»Ø0µ½1Ö®¼äµÄËæ»úÊý
*/
Êýѧ.ÁãÖÁÒ»Ëæ»úÊý = function() {
return Math.random();
};

// Rhino»·¾³Ïµĵ¼³ö
if (typeof Packages != "undefined") {
this["Êýѧ"] = Êýѧ;
}

// ===== ²âÊÔÓÃÀý =====
printl("\n»ù´¡³£Á¿²âÊÔ:");
printl("¶þΪµ×µÄeµÄ¶ÔÊý: " + Êýѧ.__¶þΪµ×µÄeµÄ¶ÔÊý());
printl("¶þµÄƽ·½¸ù: " + Êýѧ._¶þµÄƽ·½¸ù());
printl("¶þµÄƽ·½¸ùµÄµ¹Êý: " + Êýѧ.¶þµÄƽ·½¸ùµÄµ¹Êý());

printl("\n¶ÔÊýºÍÖ¸Êý²âÊÔ:");
printl("eµÄ2´ÎÃÝ: " + Êýѧ.eµÄx´ÎÃÝ(2));
printl("ln(10): " + Êýѧ.eΪµ×µÄ×ÔÈ»¶ÔÊý(10));

printl("\nÈý½Çº¯Êý²âÊÔ:");
printl("xÓëyµÄ»¡¶È(1,1): " + Êýѧ.xÓëyµÄ»¡¶È(1, 1));
printl("cos(0): " + Êýѧ.ÓàÏÒ(0));

printl("\nÈ¡Õû²âÊÔ:");
printl("3.7ÉÏÈ¡Õû: " + Êýѧ.ÉÏÈ¡Õû(3.7));
printl("3.7ÏÂÈ¡Õû: " + Êýѧ.ÏÂÈ¡Õû(3.7));

printl("\n¸ñʽ»¯²âÊÔ:");
printl("3.14159±£Áô2λСÊý: " + Êýѧ.±£ÁôСÊýλÊý(3.14159, 2));

printl("\n¸ß¼¶Êýѧº¯Êý²âÊÔ:");
printl("Ê®µÄ×ÔÈ»¶ÔÊý: " + Êýѧ.Ê®µÄ×ÔÈ»¶ÔÊý());
printl("Ë«ÇúÕýÇÐÖµ(1): " + Êýѧ.Ë«ÇúÕýÇÐÖµ(1));
printl("·´ÓàÏÒ(0.5): " + Êýѧ.·´ÓàÏÒ(0.5));
printl("·´ÕýÇÐ(1): " + Êýѧ.·´ÕýÇÐ(1));
printl("·´ÕýÏÒ(0.5): " + Êýѧ.·´ÕýÏÒ(0.5));

printl("\nÊýÖµ´¦Àí²âÊÔ:");
printl("3.14ȡСÊý: " + Êýѧ.ȡСÊý(3.14));
printl("3.14È¡Õû: " + Êýѧ.È¡Õû(3.14));
printl("×î´óÖµ(1,2,3,4,5): " + Êýѧ.È¡×î´óÖµ(1,2,3,4,5));
printl("×îСֵ(1,2,3,4,5): " + Êýѧ.È¡×îСֵ(1,2,3,4,5));
printl("3.5ËÄÉáÎåÈë: " + Êýѧ.ËÄÉáÎåÈë(3.5));
printl("Ô²ÖÜÂÊ: " + Êýѧ.Ô²ÖÜÂÊ());

printl("\n×Ö·ûºÍÊý×Öת»»²âÊÔ:");
printl("×Ö·ûתÊý×Ö('123'): " + Êýѧ.×Ö·ûתÊý×Ö('123'));
printl("ƽ·½¸ù(16): " + Êýѧ.ƽ·½¸ù(16));
printl("¸ñʽ»¯³¤¶È(3.14159): " + Êýѧ.¸ñʽ»¯³¤¶È(3.14159));

printl("\nÈý½Çº¯Êý²âÊÔ:");
printl("ÕýÇÐ(¦Ð/4): " + Êýѧ.ÕýÇÐ(Math.PI/4));
printl("ÕýÏÒ(¦Ð/2): " + Êýѧ.ÕýÏÒ(Math.PI/2));

printl("\n³£Á¿ºÍ»ù±¾ÔËËã²âÊÔ:");
printl("ËãÊõ³£Á¿e: " + Êýѧ.ËãÊõ³£Á¿e());
printl("¾ø¶ÔÖµ(-5): " + Êýѧ.¾ø¶ÔÖµ(-5));

printl("\nÊý×Ö¸ñʽ»¯²âÊÔ:");
printl("תСÊý×Ö·û(3.14159, 2): " + Êýѧ.תСÊý×Ö·û(3.14159, 2));
printl("תָÊý¼ÆÊý·¨(1234.5678, 2): " + Êýѧ.תָÊý¼ÆÊý·¨(1234.5678, 2));

printl("\nËæ»úÊý²âÊÔ:");
printl("Ëæ»úСÊý(0, 1): " + Êýѧ.Ëæ»úСÊý(0, 1));
printl("Ëæ»úÕûÊý(1, 10): " + Êýѧ.Ëæ»úÕûÊý(1, 10));
printl("ÁãÖÁÒ»Ëæ»úÊý: " + Êýѧ.ÁãÖÁÒ»Ëæ»úÊý());

printl("\n´íÎó´¦Àí²âÊÔ:");
printl("ÎÞЧÊäÈë²âÊÔ(eµÄx´ÎÃÝ): " + Êýѧ.eµÄx´ÎÃÝ("abc"));
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