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/*
* big.js v5.2.2
* A small, fast, easy-to-use library for arbitrary-precision decimal arithmetic.
* Copyright (c) 2018 Michael Mclaughlin <M8ch88l@gmail.com>
* https://github.com/MikeMcl/big.js/LICENCE
*/
;(function (GLOBAL) {
'use strict';
var Big,
/************************************** EDITABLE DEFAULTS *****************************************/
// The default values below must be integers within the stated ranges.
/*
* The maximum number of decimal places (DP) of the results of operations involving division:
* div and sqrt, and pow with negative exponents.
*/
DP = 20, // 0 to MAX_DP
/*
* The rounding mode (RM) used when rounding to the above decimal places.
*
* 0 Towards zero (i.e. truncate, no rounding). (ROUND_DOWN)
* 1 To nearest neighbour. If equidistant, round up. (ROUND_HALF_UP)
* 2 To nearest neighbour. If equidistant, to even. (ROUND_HALF_EVEN)
* 3 Away from zero. (ROUND_UP)
*/
RM = 1, // 0, 1, 2 or 3
// The maximum value of DP and Big.DP.
MAX_DP = 1E6, // 0 to 1000000
// The maximum magnitude of the exponent argument to the pow method.
MAX_POWER = 1E6, // 1 to 1000000
/*
* The negative exponent (NE) at and beneath which toString returns exponential notation.
* (JavaScript numbers: -7)
* -1000000 is the minimum recommended exponent value of a Big.
*/
NE = -7, // 0 to -1000000
/*
* The positive exponent (PE) at and above which toString returns exponential notation.
* (JavaScript numbers: 21)
* 1000000 is the maximum recommended exponent value of a Big.
* (This limit is not enforced or checked.)
*/
PE = 21, // 0 to 1000000
/**************************************************************************************************/
// Error messages.
NAME = '[big.js] ',
INVALID = NAME + 'Invalid ',
INVALID_DP = INVALID + 'decimal places',
INVALID_RM = INVALID + 'rounding mode',
DIV_BY_ZERO = NAME + 'Division by zero',
// The shared prototype object.
P = {},
UNDEFINED = void 0,
NUMERIC = /^-?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i;
/*
* Create and return a Big constructor.
*
*/
function _Big_() {
/*
* The Big constructor and exported function.
* Create and return a new instance of a Big number object.
*
* n {number|string|Big} A numeric value.
*/
function Big(n) {
var x = this;
// Enable constructor usage without new.
if (!(x instanceof Big)) return n === UNDEFINED ? _Big_() : new Big(n);
// Duplicate.
if (n instanceof Big) {
x.s = n.s;
x.e = n.e;
x.c = n.c.slice();
} else {
parse(x, n);
}
/*
* Retain a reference to this Big constructor, and shadow Big.prototype.constructor which
* points to Object.
*/
x.constructor = Big;
}
Big.prototype = P;
Big.DP = DP;
Big.RM = RM;
Big.NE = NE;
Big.PE = PE;
Big.version = '5.2.2';
return Big;
}
/*
* Parse the number or string value passed to a Big constructor.
*
* x {Big} A Big number instance.
* n {number|string} A numeric value.
*/
function parse(x, n) {
var e, i, nl;
// Minus zero?
if (n === 0 && 1 / n < 0) n = '-0';
else if (!NUMERIC.test(n += '')) throw Error(INVALID + 'number');
// Determine sign.
x.s = n.charAt(0) == '-' ? (n = n.slice(1), -1) : 1;
// Decimal point?
if ((e = n.indexOf('.')) > -1) n = n.replace('.', '');
// Exponential form?
if ((i = n.search(/e/i)) > 0) {
// Determine exponent.
if (e < 0) e = i;
e += +n.slice(i + 1);
n = n.substring(0, i);
} else if (e < 0) {
// Integer.
e = n.length;
}
nl = n.length;
// Determine leading zeros.
for (i = 0; i < nl && n.charAt(i) == '0';) ++i;
if (i == nl) {
// Zero.
x.c = [x.e = 0];
} else {
// Determine trailing zeros.
for (; nl > 0 && n.charAt(--nl) == '0';);
x.e = e - i - 1;
x.c = [];
// Convert string to array of digits without leading/trailing zeros.
for (e = 0; i <= nl;) x.c[e++] = +n.charAt(i++);
}
return x;
}
/*
* Round Big x to a maximum of dp decimal places using rounding mode rm.
* Called by stringify, P.div, P.round and P.sqrt.
*
* x {Big} The Big to round.
* dp {number} Integer, 0 to MAX_DP inclusive.
* rm {number} 0, 1, 2 or 3 (DOWN, HALF_UP, HALF_EVEN, UP)
* [more] {boolean} Whether the result of division was truncated.
*/
function round(x, dp, rm, more) {
var xc = x.c,
i = x.e + dp + 1;
if (i < xc.length) {
if (rm === 1) {
// xc[i] is the digit after the digit that may be rounded up.
more = xc[i] >= 5;
} else if (rm === 2) {
more = xc[i] > 5 || xc[i] == 5 &&
(more || i < 0 || xc[i + 1] !== UNDEFINED || xc[i - 1] & 1);
} else if (rm === 3) {
more = more || !!xc[0];
} else {
more = false;
if (rm !== 0) throw Error(INVALID_RM);
}
if (i < 1) {
xc.length = 1;
if (more) {
// 1, 0.1, 0.01, 0.001, 0.0001 etc.
x.e = -dp;
xc[0] = 1;
} else {
// Zero.
xc[0] = x.e = 0;
}
} else {
// Remove any digits after the required decimal places.
xc.length = i--;
// Round up?
if (more) {
// Rounding up may mean the previous digit has to be rounded up.
for (; ++xc[i] > 9;) {
xc[i] = 0;
if (!i--) {
++x.e;
xc.unshift(1);
}
}
}
// Remove trailing zeros.
for (i = xc.length; !xc[--i];) xc.pop();
}
} else if (rm < 0 || rm > 3 || rm !== ~~rm) {
throw Error(INVALID_RM);
}
return x;
}
/*
* Return a string representing the value of Big x in normal or exponential notation.
* Handles P.toExponential, P.toFixed, P.toJSON, P.toPrecision, P.toString and P.valueOf.
*
* x {Big}
* id? {number} Caller id.
* 1 toExponential
* 2 toFixed
* 3 toPrecision
* 4 valueOf
* n? {number|undefined} Caller's argument.
* k? {number|undefined}
*/
function stringify(x, id, n, k) {
var e, s,
Big = x.constructor,
z = !x.c[0];
if (n !== UNDEFINED) {
if (n !== ~~n || n < (id == 3) || n > MAX_DP) {
throw Error(id == 3 ? INVALID + 'precision' : INVALID_DP);
}
x = new Big(x);
// The index of the digit that may be rounded up.
n = k - x.e;
// Round?
if (x.c.length > ++k) round(x, n, Big.RM);
// toFixed: recalculate k as x.e may have changed if value rounded up.
if (id == 2) k = x.e + n + 1;
// Append zeros?
for (; x.c.length < k;) x.c.push(0);
}
e = x.e;
s = x.c.join('');
n = s.length;
// Exponential notation?
if (id != 2 && (id == 1 || id == 3 && k <= e || e <= Big.NE || e >= Big.PE)) {
s = s.charAt(0) + (n > 1 ? '.' + s.slice(1) : '') + (e < 0 ? 'e' : 'e+') + e;
// Normal notation.
} else if (e < 0) {
for (; ++e;) s = '0' + s;
s = '0.' + s;
} else if (e > 0) {
if (++e > n) for (e -= n; e--;) s += '0';
else if (e < n) s = s.slice(0, e) + '.' + s.slice(e);
} else if (n > 1) {
s = s.charAt(0) + '.' + s.slice(1);
}
return x.s < 0 && (!z || id == 4) ? '-' + s : s;
}
// Prototype/instance methods
/*
* Return a new Big whose value is the absolute value of this Big.
*/
P.abs = function () {
var x = new this.constructor(this);
x.s = 1;
return x;
};
/*
* Return 1 if the value of this Big is greater than the value of Big y,
* -1 if the value of this Big is less than the value of Big y, or
* 0 if they have the same value.
*/
P.cmp = function (y) {
var isneg,
x = this,
xc = x.c,
yc = (y = new x.constructor(y)).c,
i = x.s,
j = y.s,
k = x.e,
l = y.e;
// Either zero?
if (!xc[0] || !yc[0]) return !xc[0] ? !yc[0] ? 0 : -j : i;
// Signs differ?
if (i != j) return i;
isneg = i < 0;
// Compare exponents.
if (k != l) return k > l ^ isneg ? 1 : -1;
j = (k = xc.length) < (l = yc.length) ? k : l;
// Compare digit by digit.
for (i = -1; ++i < j;) {
if (xc[i] != yc[i]) return xc[i] > yc[i] ^ isneg ? 1 : -1;
}
// Compare lengths.
return k == l ? 0 : k > l ^ isneg ? 1 : -1;
};
/*
* Return a new Big whose value is the value of this Big divided by the value of Big y, rounded,
* if necessary, to a maximum of Big.DP decimal places using rounding mode Big.RM.
*/
P.div = function (y) {
var x = this,
Big = x.constructor,
a = x.c, // dividend
b = (y = new Big(y)).c, // divisor
k = x.s == y.s ? 1 : -1,
dp = Big.DP;
if (dp !== ~~dp || dp < 0 || dp > MAX_DP) throw Error(INVALID_DP);
// Divisor is zero?
if (!b[0]) throw Error(DIV_BY_ZERO);
// Dividend is 0? Return +-0.
if (!a[0]) return new Big(k * 0);
var bl, bt, n, cmp, ri,
bz = b.slice(),
ai = bl = b.length,
al = a.length,
r = a.slice(0, bl), // remainder
rl = r.length,
q = y, // quotient
qc = q.c = [],
qi = 0,
d = dp + (q.e = x.e - y.e) + 1; // number of digits of the result
q.s = k;
k = d < 0 ? 0 : d;
// Create version of divisor with leading zero.
bz.unshift(0);
// Add zeros to make remainder as long as divisor.
for (; rl++ < bl;) r.push(0);
do {
// n is how many times the divisor goes into current remainder.
for (n = 0; n < 10; n++) {
// Compare divisor and remainder.
if (bl != (rl = r.length)) {
cmp = bl > rl ? 1 : -1;
} else {
for (ri = -1, cmp = 0; ++ri < bl;) {
if (b[ri] != r[ri]) {
cmp = b[ri] > r[ri] ? 1 : -1;
break;
}
}
}
// If divisor < remainder, subtract divisor from remainder.
if (cmp < 0) {
// Remainder can't be more than 1 digit longer than divisor.
// Equalise lengths using divisor with extra leading zero?
for (bt = rl == bl ? b : bz; rl;) {
if (r[--rl] < bt[rl]) {
ri = rl;
for (; ri && !r[--ri];) r[ri] = 9;
--r[ri];
r[rl] += 10;
}
r[rl] -= bt[rl];
}
for (; !r[0];) r.shift();
} else {
break;
}
}
// Add the digit n to the result array.
qc[qi++] = cmp ? n : ++n;
// Update the remainder.
if (r[0] && cmp) r[rl] = a[ai] || 0;
else r = [a[ai]];
} while ((ai++ < al || r[0] !== UNDEFINED) && k--);
// Leading zero? Do not remove if result is simply zero (qi == 1).
if (!qc[0] && qi != 1) {
// There can't be more than one zero.
qc.shift();
q.e--;
}
// Round?
if (qi > d) round(q, dp, Big.RM, r[0] !== UNDEFINED);
return q;
};
/*
* Return true if the value of this Big is equal to the value of Big y, otherwise return false.
*/
P.eq = function (y) {
return !this.cmp(y);
};
/*
* Return true if the value of this Big is greater than the value of Big y, otherwise return
* false.
*/
P.gt = function (y) {
return this.cmp(y) > 0;
};
/*
* Return true if the value of this Big is greater than or equal to the value of Big y, otherwise
* return false.
*/
P.gte = function (y) {
return this.cmp(y) > -1;
};
/*
* Return true if the value of this Big is less than the value of Big y, otherwise return false.
*/
P.lt = function (y) {
return this.cmp(y) < 0;
};
/*
* Return true if the value of this Big is less than or equal to the value of Big y, otherwise
* return false.
*/
P.lte = function (y) {
return this.cmp(y) < 1;
};
/*
* Return a new Big whose value is the value of this Big minus the value of Big y.
*/
P.minus = P.sub = function (y) {
var i, j, t, xlty,
x = this,
Big = x.constructor,
a = x.s,
b = (y = new Big(y)).s;
// Signs differ?
if (a != b) {
y.s = -b;
return x.plus(y);
}
var xc = x.c.slice(),
xe = x.e,
yc = y.c,
ye = y.e;
// Either zero?
if (!xc[0] || !yc[0]) {
// y is non-zero? x is non-zero? Or both are zero.
return yc[0] ? (y.s = -b, y) : new Big(xc[0] ? x : 0);
}
// Determine which is the bigger number. Prepend zeros to equalise exponents.
if (a = xe - ye) {
if (xlty = a < 0) {
a = -a;
t = xc;
} else {
ye = xe;
t = yc;
}
t.reverse();
for (b = a; b--;) t.push(0);
t.reverse();
} else {
// Exponents equal. Check digit by digit.
j = ((xlty = xc.length < yc.length) ? xc : yc).length;
for (a = b = 0; b < j; b++) {
if (xc[b] != yc[b]) {
xlty = xc[b] < yc[b];
break;
}
}
}
// x < y? Point xc to the array of the bigger number.
if (xlty) {
t = xc;
xc = yc;
yc = t;
y.s = -y.s;
}
/*
* Append zeros to xc if shorter. No need to add zeros to yc if shorter as subtraction only
* needs to start at yc.length.
*/
if ((b = (j = yc.length) - (i = xc.length)) > 0) for (; b--;) xc[i++] = 0;
// Subtract yc from xc.
for (b = i; j > a;) {
if (xc[--j] < yc[j]) {
for (i = j; i && !xc[--i];) xc[i] = 9;
--xc[i];
xc[j] += 10;
}
xc[j] -= yc[j];
}
// Remove trailing zeros.
for (; xc[--b] === 0;) xc.pop();
// Remove leading zeros and adjust exponent accordingly.
for (; xc[0] === 0;) {
xc.shift();
--ye;
}
if (!xc[0]) {
// n - n = +0
y.s = 1;
// Result must be zero.
xc = [ye = 0];
}
y.c = xc;
y.e = ye;
return y;
};
/*
* Return a new Big whose value is the value of this Big modulo the value of Big y.
*/
P.mod = function (y) {
var ygtx,
x = this,
Big = x.constructor,
a = x.s,
b = (y = new Big(y)).s;
if (!y.c[0]) throw Error(DIV_BY_ZERO);
x.s = y.s = 1;
ygtx = y.cmp(x) == 1;
x.s = a;
y.s = b;
if (ygtx) return new Big(x);
a = Big.DP;
b = Big.RM;
Big.DP = Big.RM = 0;
x = x.div(y);
Big.DP = a;
Big.RM = b;
return this.minus(x.times(y));
};
/*
* Return a new Big whose value is the value of this Big plus the value of Big y.
*/
P.plus = P.add = function (y) {
var t,
x = this,
Big = x.constructor,
a = x.s,
b = (y = new Big(y)).s;
// Signs differ?
if (a != b) {
y.s = -b;
return x.minus(y);
}
var xe = x.e,
xc = x.c,
ye = y.e,
yc = y.c;
// Either zero? y is non-zero? x is non-zero? Or both are zero.
if (!xc[0] || !yc[0]) return yc[0] ? y : new Big(xc[0] ? x : a * 0);
xc = xc.slice();
// Prepend zeros to equalise exponents.
// Note: reverse faster than unshifts.
if (a = xe - ye) {
if (a > 0) {
ye = xe;
t = yc;
} else {
a = -a;
t = xc;
}
t.reverse();
for (; a--;) t.push(0);
t.reverse();
}
// Point xc to the longer array.
if (xc.length - yc.length < 0) {
t = yc;
yc = xc;
xc = t;
}
a = yc.length;
// Only start adding at yc.length - 1 as the further digits of xc can be left as they are.
for (b = 0; a; xc[a] %= 10) b = (xc[--a] = xc[a] + yc[a] + b) / 10 | 0;
// No need to check for zero, as +x + +y != 0 && -x + -y != 0
if (b) {
xc.unshift(b);
++ye;
}
// Remove trailing zeros.
for (a = xc.length; xc[--a] === 0;) xc.pop();
y.c = xc;
y.e = ye;
return y;
};
/*
* Return a Big whose value is the value of this Big raised to the power n.
* If n is negative, round to a maximum of Big.DP decimal places using rounding
* mode Big.RM.
*
* n {number} Integer, -MAX_POWER to MAX_POWER inclusive.
*/
P.pow = function (n) {
var x = this,
one = new x.constructor(1),
y = one,
isneg = n < 0;
if (n !== ~~n || n < -MAX_POWER || n > MAX_POWER) throw Error(INVALID + 'exponent');
if (isneg) n = -n;
for (;;) {
if (n & 1) y = y.times(x);
n >>= 1;
if (!n) break;
x = x.times(x);
}
return isneg ? one.div(y) : y;
};
/*
* Return a new Big whose value is the value of this Big rounded using rounding mode rm
* to a maximum of dp decimal places, or, if dp is negative, to an integer which is a
* multiple of 10**-dp.
* If dp is not specified, round to 0 decimal places.
* If rm is not specified, use Big.RM.
*
* dp? {number} Integer, -MAX_DP to MAX_DP inclusive.
* rm? 0, 1, 2 or 3 (ROUND_DOWN, ROUND_HALF_UP, ROUND_HALF_EVEN, ROUND_UP)
*/
P.round = function (dp, rm) {
var Big = this.constructor;
if (dp === UNDEFINED) dp = 0;
else if (dp !== ~~dp || dp < -MAX_DP || dp > MAX_DP) throw Error(INVALID_DP);
return round(new Big(this), dp, rm === UNDEFINED ? Big.RM : rm);
};
/*
* Return a new Big whose value is the square root of the value of this Big, rounded, if
* necessary, to a maximum of Big.DP decimal places using rounding mode Big.RM.
*/
P.sqrt = function () {
var r, c, t,
x = this,
Big = x.constructor,
s = x.s,
e = x.e,
half = new Big(0.5);
// Zero?
if (!x.c[0]) return new Big(x);
// Negative?
if (s < 0) throw Error(NAME + 'No square root');
// Estimate.
s = Math.sqrt(x + '');
// Math.sqrt underflow/overflow?
// Re-estimate: pass x coefficient to Math.sqrt as integer, then adjust the result exponent.
if (s === 0 || s === 1 / 0) {
c = x.c.join('');
if (!(c.length + e & 1)) c += '0';
s = Math.sqrt(c);
e = ((e + 1) / 2 | 0) - (e < 0 || e & 1);
r = new Big((s == 1 / 0 ? '1e' : (s = s.toExponential()).slice(0, s.indexOf('e') + 1)) + e);
} else {
r = new Big(s);
}
e = r.e + (Big.DP += 4);
// Newton-Raphson iteration.
do {
t = r;
r = half.times(t.plus(x.div(t)));
} while (t.c.slice(0, e).join('') !== r.c.slice(0, e).join(''));
return round(r, Big.DP -= 4, Big.RM);
};
/*
* Return a new Big whose value is the value of this Big times the value of Big y.
*/
P.times = P.mul = function (y) {
var c,
x = this,
Big = x.constructor,
xc = x.c,
yc = (y = new Big(y)).c,
a = xc.length,
b = yc.length,
i = x.e,
j = y.e;
// Determine sign of result.
y.s = x.s == y.s ? 1 : -1;
// Return signed 0 if either 0.
if (!xc[0] || !yc[0]) return new Big(y.s * 0);
// Initialise exponent of result as x.e + y.e.
y.e = i + j;
// If array xc has fewer digits than yc, swap xc and yc, and lengths.
if (a < b) {
c = xc;
xc = yc;
yc = c;
j = a;
a = b;
b = j;
}
// Initialise coefficient array of result with zeros.
for (c = new Array(j = a + b); j--;) c[j] = 0;
// Multiply.
// i is initially xc.length.
for (i = b; i--;) {
b = 0;
// a is yc.length.
for (j = a + i; j > i;) {
// Current sum of products at this digit position, plus carry.
b = c[j] + yc[i] * xc[j - i - 1] + b;
c[j--] = b % 10;
// carry
b = b / 10 | 0;
}
c[j] = (c[j] + b) % 10;
}
// Increment result exponent if there is a final carry, otherwise remove leading zero.
if (b) ++y.e;
else c.shift();
// Remove trailing zeros.
for (i = c.length; !c[--i];) c.pop();
y.c = c;
return y;
};
/*
* Return a string representing the value of this Big in exponential notation to dp fixed decimal
* places and rounded using Big.RM.
*
* dp? {number} Integer, 0 to MAX_DP inclusive.
*/
P.toExponential = function (dp) {
return stringify(this, 1, dp, dp);
};
/*
* Return a string representing the value of this Big in normal notation to dp fixed decimal
* places and rounded using Big.RM.
*
* dp? {number} Integer, 0 to MAX_DP inclusive.
*
* (-0).toFixed(0) is '0', but (-0.1).toFixed(0) is '-0'.
* (-0).toFixed(1) is '0.0', but (-0.01).toFixed(1) is '-0.0'.
*/
P.toFixed = function (dp) {
return stringify(this, 2, dp, this.e + dp);
};
/*
* Return a string representing the value of this Big rounded to sd significant digits using
* Big.RM. Use exponential notation if sd is less than the number of digits necessary to represent
* the integer part of the value in normal notation.
*
* sd {number} Integer, 1 to MAX_DP inclusive.
*/
P.toPrecision = function (sd) {
return stringify(this, 3, sd, sd - 1);
};
/*
* Return a string representing the value of this Big.
* Return exponential notation if this Big has a positive exponent equal to or greater than
* Big.PE, or a negative exponent equal to or less than Big.NE.
* Omit the sign for negative zero.
*/
P.toString = function () {
return stringify(this);
};
/*
* Return a string representing the value of this Big.
* Return exponential notation if this Big has a positive exponent equal to or greater than
* Big.PE, or a negative exponent equal to or less than Big.NE.
* Include the sign for negative zero.
*/
P.valueOf = P.toJSON = function () {
return stringify(this, 4);
};
// Export
Big = _Big_();
Big['default'] = Big.Big = Big;
//AMD.
if (typeof define === 'function' && define.amd) {
define(function () { return Big; });
// Node and other CommonJS-like environments that support module.exports.
} else if (typeof module !== 'undefined' && module.exports) {
module.exports = Big;
//Browser.
} else {
GLOBAL.Big = Big;
}
})(this);