700 lines
17 KiB
HTML
700 lines
17 KiB
HTML
|
<!DOCTYPE html>
|
||
|
|
<html lang='en'>
|
||
|
|
<head>
|
||
|
|
<meta charset='utf-8' />
|
||
|
|
<meta name="Author" content="M Mclaughlin">
|
||
|
|
<title>Testing BigNumber</title>
|
||
|
|
<style>
|
||
|
|
body {margin: 0; padding: 0; font-family: Calibri, Arial, Sans-Serif;}
|
||
|
|
div {margin: 1em 0;}
|
||
|
|
h1, #counter {text-align: center; background-color: rgb(225, 225, 225);
|
||
|
|
margin-top: 1em; padding: 0.2em; font-size: 1.2em;}
|
||
|
|
a {color: rgb(0, 153, 255); margin: 0 0.6em;}
|
||
|
|
.links {position: fixed; bottom: 1em; right: 2em; font-size: 0.8em;}
|
||
|
|
.form, #time {width: 36em; margin: 0 auto;}
|
||
|
|
.form {text-align: left; margin-top: 1.4em;}
|
||
|
|
.random input {margin-left: 1em;}
|
||
|
|
.small {font-size: 0.9em;}
|
||
|
|
.methods {margin: 1em auto; width: 18em;}
|
||
|
|
.iterations input, .left {margin-left: 1.6em;}
|
||
|
|
.info span {margin-left: 1.6em; font-size: 0.9em;}
|
||
|
|
.info {margin-top: 1.6em;}
|
||
|
|
.random input, .iterations input {margin-right: 0.3em;}
|
||
|
|
.random label, .iterations label, .bigd label {font-size: 0.9em;
|
||
|
|
margin-left: 0.1em;}
|
||
|
|
.methods label {width: 5em; margin-left: 0.2em; display: inline-block;}
|
||
|
|
.methods label.right {width: 2em;}
|
||
|
|
.red {color: red; font-size: 1.1em; font-weight: bold;}
|
||
|
|
button {width: 10em; height: 2em;}
|
||
|
|
#dp, #r, #digits, #reps {margin-left: 0.8em;}
|
||
|
|
#bigint {font-style: italic; display: none;}
|
||
|
|
#gwt, #icu4j, #bd, #bigint {margin-left: 1.5em;}
|
||
|
|
#division {display: none;}
|
||
|
|
#counter {font-size: 2em; background-color: rgb(235, 235, 235);}
|
||
|
|
#time {text-align: center;}
|
||
|
|
#results {margin: 0 1.4em;}
|
||
|
|
</style>
|
||
|
|
<script src='../bignumber.js'></script>
|
||
|
|
<script src='./lib/bigdecimal_GWT/bigdecimal.js'></script>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<h1>Testing BigNumber against BigDecimal</h1>
|
||
|
|
|
||
|
|
<div class='form'>
|
||
|
|
|
||
|
|
<div class='methods'>
|
||
|
|
<input type='radio' id=0 name=1/><label for=0>plus</label>
|
||
|
|
<input type='radio' id=3 name=1/><label for=3>div</label>
|
||
|
|
<input type='radio' id=6 name=1/><label for=6 class='right'>abs</label>
|
||
|
|
<br>
|
||
|
|
<input type='radio' id=1 name=1/><label for=1>minus</label>
|
||
|
|
<input type='radio' id=4 name=1/><label for=4>mod</label>
|
||
|
|
<input type='radio' id=7 name=1/><label for=7 class='right'>neg</label>
|
||
|
|
<br>
|
||
|
|
<input type='radio' id=2 name=1/><label for=2>times</label>
|
||
|
|
<input type='radio' id=5 name=1/><label for=5>cmp</label>
|
||
|
|
<input type='radio' id=8 name=1/><label for=8 class='right'>pow</label>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class='bigd'>
|
||
|
|
<span>BigDecimal:</span>
|
||
|
|
<input type='radio' name=2 id='gwt' /><label for='gwt'>GWT</label>
|
||
|
|
<input type='radio' name=2 id='icu4j' /><label for='icu4j'>ICU4J</label>
|
||
|
|
<span id='bigint'>BigInteger</span>
|
||
|
|
<span id='bd'>add</span>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class='random'>
|
||
|
|
Random number digits:<input type='text' id='digits' size=12 />
|
||
|
|
<input type='radio' name=3 id='fix' /><label for='fix'>Fixed</label>
|
||
|
|
<input type='radio' name=3 id='max' /><label for='max'>Max</label>
|
||
|
|
<input type='checkbox' id='int' /><label for='int'>Integers only</label>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div id='division'>
|
||
|
|
<span>Decimal places:<input type='text' id='dp' size=9 /></span>
|
||
|
|
<span class='left'>Rounding:<select id='r'>
|
||
|
|
<option>UP</option>
|
||
|
|
<option>DOWN</option>
|
||
|
|
<option>CEIL</option>
|
||
|
|
<option>FLOOR</option>
|
||
|
|
<option>HALF_UP</option>
|
||
|
|
<option>HALF_DOWN</option>
|
||
|
|
<option>HALF_EVEN</option>
|
||
|
|
</select></span>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class='iterations'>
|
||
|
|
Iterations:<input type='text' id='reps' size=11 />
|
||
|
|
<input type='checkbox' id='show'/><label for='show'>Show all (no timing)</label>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class='info'>
|
||
|
|
<button id='start'>Start</button>
|
||
|
|
<span>Click a method to stop</span>
|
||
|
|
<span>Press space bar to pause/unpause</span>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div id='counter'>0</div>
|
||
|
|
<div id='time'></div>
|
||
|
|
<div id='results'></div>
|
||
|
|
|
||
|
|
<div class='links'>
|
||
|
|
<a href='https://github.com/MikeMcl/bignumber.js' target='_blank'>BigNumber</a>
|
||
|
|
<a href='https://github.com/iriscouch/bigdecimal.js' target='_blank'>GWT</a>
|
||
|
|
<a href='https://github.com/dtrebbien/BigDecimal.js/tree/' target='_blank'>ICU4J</a>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
|
||
|
|
var i, completedReps, targetReps, cycleReps, cycleTime, prevCycleReps, cycleLimit,
|
||
|
|
maxDigits, isFixed, isIntOnly, decimalPlaces, rounding, calcTimeout,
|
||
|
|
counterTimeout, script, isGWT, BigDecimal_GWT, BigDecimal_ICU4J,
|
||
|
|
bdM, bdTotal, bnM, bnTotal,
|
||
|
|
bdMs = ['add', 'subtract', 'multiply', 'divide', 'remainder', 'compareTo',
|
||
|
|
'abs', 'negate', 'pow'],
|
||
|
|
bnMs = ['plus', 'minus', 'times', 'div', 'mod', 'cmp', 'abs', 'neg', 'pow'],
|
||
|
|
lastRounding = 4,
|
||
|
|
pause = false,
|
||
|
|
up = true,
|
||
|
|
timingVisible = false,
|
||
|
|
showAll = false,
|
||
|
|
|
||
|
|
// EDIT DEFAULTS HERE
|
||
|
|
|
||
|
|
DEFAULT_REPS = 10000,
|
||
|
|
DEFAULT_DIGITS = 20,
|
||
|
|
DEFAULT_DECIMAL_PLACES = 20,
|
||
|
|
DEFAULT_ROUNDING = 4,
|
||
|
|
MAX_POWER = 20,
|
||
|
|
CHANCE_NEGATIVE = 0.5, // 0 (never) to 1 (always)
|
||
|
|
CHANCE_INTEGER = 0.2, // 0 (never) to 1 (always)
|
||
|
|
MAX_RANDOM_EXPONENT = 100,
|
||
|
|
SPACE_BAR = 32,
|
||
|
|
ICU4J_URL = './lib/bigdecimal_ICU4J/BigDecimal-all-last.js',
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
$ = function (id) {return document.getElementById(id)},
|
||
|
|
$INPUTS = document.getElementsByTagName('input'),
|
||
|
|
$BD = $('bd'),
|
||
|
|
$BIGINT = $('bigint'),
|
||
|
|
$DIGITS = $('digits'),
|
||
|
|
$GWT = $('gwt'),
|
||
|
|
$ICU4J = $('icu4j'),
|
||
|
|
$FIX = $('fix'),
|
||
|
|
$MAX = $('max'),
|
||
|
|
$INT = $('int'),
|
||
|
|
$DIV = $('division'),
|
||
|
|
$DP = $('dp'),
|
||
|
|
$R = $('r'),
|
||
|
|
$REPS = $('reps'),
|
||
|
|
$SHOW = $('show'),
|
||
|
|
$START = $('start'),
|
||
|
|
$COUNTER = $('counter'),
|
||
|
|
$TIME = $('time'),
|
||
|
|
$RESULTS = $('results'),
|
||
|
|
|
||
|
|
// Get random number in normal notation.
|
||
|
|
getRandom = function () {
|
||
|
|
var z,
|
||
|
|
i = 0,
|
||
|
|
// n is the number of digits - 1
|
||
|
|
n = isFixed ? maxDigits - 1 : Math.random() * (maxDigits || 1) | 0,
|
||
|
|
r = ( Math.random() * 10 | 0 ) + '';
|
||
|
|
|
||
|
|
if (n) {
|
||
|
|
if (r == '0')
|
||
|
|
r = isIntOnly ? ( ( Math.random() * 9 | 0 ) + 1 ) + '' : (z = r + '.');
|
||
|
|
|
||
|
|
for ( ; i++ < n; r += Math.random() * 10 | 0 ){}
|
||
|
|
|
||
|
|
if (!z && !isIntOnly && Math.random() > CHANCE_INTEGER) {
|
||
|
|
r = r.slice( 0, i = (Math.random() * n | 0) + 1 ) +
|
||
|
|
'.' + r.slice(i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Avoid division by zero error with division and modulo
|
||
|
|
if ((bdM == 'divide' || bdM == 'remainder') && parseFloat(r) === 0)
|
||
|
|
r = ( ( Math.random() * 9 | 0 ) + 1 ) + '';
|
||
|
|
|
||
|
|
return Math.random() > CHANCE_NEGATIVE ? r : '-' + r;
|
||
|
|
},
|
||
|
|
|
||
|
|
// Get random number in exponential notation (if isIntOnly is false).
|
||
|
|
// GWT BigDecimal BigInteger does not accept exponential notation.
|
||
|
|
//getRandom = function () {
|
||
|
|
// var i = 0,
|
||
|
|
// // n is the number of significant digits - 1
|
||
|
|
// n = isFixed ? maxDigits - 1 : Math.random() * (maxDigits || 1) | 0,
|
||
|
|
// r = ( ( Math.random() * 9 | 0 ) + 1 ) + '';
|
||
|
|
//
|
||
|
|
// for (; i++ < n; r += Math.random() * 10 | 0 ){}
|
||
|
|
//
|
||
|
|
// if ( !isIntOnly ) {
|
||
|
|
//
|
||
|
|
// // Add exponent.
|
||
|
|
// r += 'e' + ( Math.random() > 0.5 ? '+' : '-' ) +
|
||
|
|
// ( Math.random() * MAX_RANDOM_EXPONENT | 0 );
|
||
|
|
// }
|
||
|
|
//
|
||
|
|
// return Math.random() > CHANCE_NEGATIVE ? r : '-' + r
|
||
|
|
//},
|
||
|
|
|
||
|
|
showTimings = function () {
|
||
|
|
var i, bdS, bnS,
|
||
|
|
sp = '',
|
||
|
|
r = bnTotal < bdTotal
|
||
|
|
? (bnTotal ? bdTotal / bnTotal : bdTotal)
|
||
|
|
: (bdTotal ? bnTotal / bdTotal : bnTotal);
|
||
|
|
|
||
|
|
bdS = 'BigDecimal: ' + (bdTotal || '<1');
|
||
|
|
bnS = 'BigNumber: ' + (bnTotal || '<1');
|
||
|
|
|
||
|
|
for ( i = bdS.length - bnS.length; i-- > 0; sp += ' '){}
|
||
|
|
bnS = 'BigNumber: ' + sp + (bnTotal || '<1');
|
||
|
|
|
||
|
|
$TIME.innerHTML =
|
||
|
|
'No mismatches<div>' + bdS + ' ms<br>' + bnS + ' ms</div>' +
|
||
|
|
((r = parseFloat(r.toFixed(1))) > 1
|
||
|
|
? 'Big' + (bnTotal < bdTotal ? 'Number' : 'Decimal')
|
||
|
|
+ ' was ' + r + ' times faster'
|
||
|
|
: 'Times approximately equal');
|
||
|
|
},
|
||
|
|
|
||
|
|
clear = function () {
|
||
|
|
clearTimeout(calcTimeout);
|
||
|
|
clearTimeout(counterTimeout);
|
||
|
|
|
||
|
|
$COUNTER.style.textDecoration = 'none';
|
||
|
|
$COUNTER.innerHTML = '0';
|
||
|
|
$TIME.innerHTML = $RESULTS.innerHTML = '';
|
||
|
|
$START.innerHTML = 'Start';
|
||
|
|
},
|
||
|
|
|
||
|
|
begin = function () {
|
||
|
|
var i;
|
||
|
|
clear();
|
||
|
|
|
||
|
|
targetReps = +$REPS.value;
|
||
|
|
if (!(targetReps > 0)) return;
|
||
|
|
|
||
|
|
$START.innerHTML = 'Restart';
|
||
|
|
|
||
|
|
i = +$DIGITS.value;
|
||
|
|
$DIGITS.value = maxDigits = i && isFinite(i) ? i : DEFAULT_DIGITS;
|
||
|
|
|
||
|
|
for (i = 0; i < 9; i++) {
|
||
|
|
if ($INPUTS[i].checked) {
|
||
|
|
bnM = bnMs[$INPUTS[i].id];
|
||
|
|
bdM = bdMs[$INPUTS[i].id];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bdM == 'divide') {
|
||
|
|
i = +$DP.value;
|
||
|
|
$DP.value = decimalPlaces = isFinite(i) ? i : DEFAULT_DECIMAL_PLACES;
|
||
|
|
rounding = $R.selectedIndex;
|
||
|
|
BigNumber.config(decimalPlaces, rounding);
|
||
|
|
}
|
||
|
|
|
||
|
|
isFixed = $FIX.checked;
|
||
|
|
isIntOnly = $INT.checked;
|
||
|
|
showAll = $SHOW.checked;
|
||
|
|
|
||
|
|
BigDecimal = (isGWT = $GWT.checked)
|
||
|
|
? (isIntOnly ? BigInteger : BigDecimal_GWT)
|
||
|
|
: BigDecimal_ICU4J;
|
||
|
|
|
||
|
|
prevCycleReps = cycleLimit = completedReps = bdTotal = bnTotal = 0;
|
||
|
|
pause = false;
|
||
|
|
|
||
|
|
cycleReps = showAll ? 1 : 0.5;
|
||
|
|
cycleTime = +new Date();
|
||
|
|
|
||
|
|
setTimeout(updateCounter, 0);
|
||
|
|
},
|
||
|
|
|
||
|
|
updateCounter = function () {
|
||
|
|
|
||
|
|
if (pause) {
|
||
|
|
if (!timingVisible && !showAll) {
|
||
|
|
showTimings();
|
||
|
|
timingVisible = true;
|
||
|
|
}
|
||
|
|
counterTimeout = setTimeout(updateCounter, 50);
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
$COUNTER.innerHTML = completedReps;
|
||
|
|
|
||
|
|
if (completedReps < targetReps) {
|
||
|
|
if (timingVisible) {
|
||
|
|
$TIME.innerHTML = '';
|
||
|
|
timingVisible = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!showAll) {
|
||
|
|
|
||
|
|
// Adjust cycleReps so counter is updated every second-ish
|
||
|
|
if (prevCycleReps != cycleReps) {
|
||
|
|
|
||
|
|
// cycleReps too low
|
||
|
|
if (+new Date() - cycleTime < 1e3) {
|
||
|
|
prevCycleReps = cycleReps;
|
||
|
|
|
||
|
|
if (cycleLimit) {
|
||
|
|
cycleReps += ((cycleLimit - cycleReps) / 2);
|
||
|
|
} else {
|
||
|
|
cycleReps *= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
// cycleReps too high
|
||
|
|
} else {
|
||
|
|
cycleLimit = cycleReps;
|
||
|
|
cycleReps -= ((cycleReps - prevCycleReps) / 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
cycleReps = Math.floor(cycleReps) || 1;
|
||
|
|
cycleTime = +new Date();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (completedReps + cycleReps > targetReps) {
|
||
|
|
cycleReps = targetReps - completedReps;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
completedReps += cycleReps;
|
||
|
|
calcTimeout = setTimeout(calc, 0);
|
||
|
|
|
||
|
|
// Finished - show timings summary
|
||
|
|
} else {
|
||
|
|
$START.innerHTML = 'Start';
|
||
|
|
$COUNTER.style.textDecoration = 'underline';
|
||
|
|
if (!showAll) {
|
||
|
|
showTimings();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
calc = function () {
|
||
|
|
|
||
|
|
var start, bdT, bnT, bdR, bnR,
|
||
|
|
xs = [cycleReps],
|
||
|
|
ys = [cycleReps],
|
||
|
|
bdRs = [cycleReps],
|
||
|
|
bnRs = [cycleReps];
|
||
|
|
|
||
|
|
|
||
|
|
// GENERATE RANDOM OPERANDS
|
||
|
|
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
xs[i] = getRandom();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bdM == 'pow') {
|
||
|
|
|
||
|
|
// GWT pow argument must be Number type and integer
|
||
|
|
if (isGWT) {
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
ys[i] = Math.floor(Math.random() * (MAX_POWER + 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
// ICU4J pow argument must be BigDecimal
|
||
|
|
} else {
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
ys[i] = Math.floor(Math.random() * (MAX_POWER + 1)) + '';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// No second operand needed for abs and negate
|
||
|
|
} else if (bdM != 'abs' && bdM != 'negate') {
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
ys[i] = getRandom();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//********************************************************************//
|
||
|
|
//************************** START TIMING ****************************//
|
||
|
|
//********************************************************************//
|
||
|
|
|
||
|
|
|
||
|
|
// BIGDECIMAL
|
||
|
|
|
||
|
|
if (bdM == 'divide') {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bdRs[i] = new BigDecimal(xs[i])[bdM](new BigDecimal(ys[i]),
|
||
|
|
decimalPlaces, rounding);
|
||
|
|
}
|
||
|
|
bdT = +new Date() - start;
|
||
|
|
|
||
|
|
// GWT pow argument must be Number type and integer
|
||
|
|
} else if (bdM == 'pow' && isGWT) {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bdRs[i] = new BigDecimal(xs[i])[bdM](ys[i]);
|
||
|
|
}
|
||
|
|
bdT = +new Date() - start;
|
||
|
|
|
||
|
|
} else if (bdM == 'abs' || bdM == 'negate') {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bdRs[i] = new BigDecimal(xs[i])[bdM]();
|
||
|
|
}
|
||
|
|
bdT = +new Date() - start;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bdRs[i] = new BigDecimal(xs[i])[bdM](new BigDecimal(ys[i]));
|
||
|
|
}
|
||
|
|
bdT = +new Date() - start;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// BIGNUM
|
||
|
|
|
||
|
|
if (bdM == 'pow') {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bnRs[i] = new BigNumber(xs[i])[bnM](ys[i]);
|
||
|
|
}
|
||
|
|
bnT = +new Date() - start;
|
||
|
|
|
||
|
|
} else if (bdM == 'abs' || bdM == 'negate') {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bnRs[i] = new BigNumber(xs[i])[bnM]();
|
||
|
|
}
|
||
|
|
bnT = +new Date() - start;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
start = +new Date();
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bnRs[i] = new BigNumber(xs[i])[bnM](new BigNumber(ys[i]));
|
||
|
|
}
|
||
|
|
bnT = +new Date() - start;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//********************************************************************//
|
||
|
|
//**************************** END TIMING ****************************//
|
||
|
|
//********************************************************************//
|
||
|
|
|
||
|
|
|
||
|
|
// CHECK FOR MISMATCHES
|
||
|
|
|
||
|
|
for (i = 0; i < cycleReps; i++) {
|
||
|
|
bnR = bnRs[i].toString();
|
||
|
|
|
||
|
|
// Remove any trailing zeros from BigDecimal result
|
||
|
|
if (isGWT) {
|
||
|
|
bdR = bdM == 'compareTo' || isIntOnly
|
||
|
|
? bdRs[i].toString()
|
||
|
|
: bdRs[i].stripTrailingZeros().toPlainString();
|
||
|
|
} else {
|
||
|
|
|
||
|
|
// No toPlainString() or stripTrailingZeros() in ICU4J
|
||
|
|
bdR = bdRs[i].toString();
|
||
|
|
|
||
|
|
if (bdR.indexOf('.') != -1) {
|
||
|
|
bdR = bdR.replace(/\.?0+$/, '');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bdR !== bnR) {
|
||
|
|
|
||
|
|
$RESULTS.innerHTML =
|
||
|
|
'<span class="red">Breaking on first mismatch:</span>' +
|
||
|
|
'<br><br>' +xs[i] + '<br>' + bnM + '<br>' + ys[i] +
|
||
|
|
'<br><br>BigDecimal<br>' + bdR + '<br>' + bnR + '<br>BigNumber';
|
||
|
|
|
||
|
|
if (bdM == 'divide') {
|
||
|
|
$RESULTS.innerHTML += '<br><br>Decimal places: ' +
|
||
|
|
decimalPlaces + '<br>Rounding mode: ' + rounding;
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
} else if (showAll) {
|
||
|
|
$RESULTS.innerHTML = xs[i] + '<br>' + bnM + '<br>' + ys[i] +
|
||
|
|
'<br><br>BigDecimal<br>' + bdR + '<br>' + bnR + '<br>BigNumber';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bdTotal += bdT;
|
||
|
|
bnTotal += bnT;
|
||
|
|
|
||
|
|
updateCounter();
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// EVENT HANDLERS
|
||
|
|
|
||
|
|
document.onkeyup = function (evt) {
|
||
|
|
evt = evt || window.event;
|
||
|
|
if ((evt.keyCode || evt.which) == SPACE_BAR) {
|
||
|
|
up = true;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
document.onkeydown = function (evt) {
|
||
|
|
evt = evt || window.event;
|
||
|
|
if (up && (evt.keyCode || evt.which) == SPACE_BAR) {
|
||
|
|
pause = !pause;
|
||
|
|
up = false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// BigNumber methods' radio buttons' event handlers
|
||
|
|
for (i = 0; i < 9; i++) {
|
||
|
|
$INPUTS[i].checked = false;
|
||
|
|
$INPUTS[i].disabled = false;
|
||
|
|
$INPUTS[i].onclick = function () {
|
||
|
|
clear();
|
||
|
|
lastRounding = $R.options.selectedIndex;
|
||
|
|
$DIV.style.display = 'none';
|
||
|
|
bnM = bnMs[this.id];
|
||
|
|
$BD.innerHTML = bdM = bdMs[this.id];
|
||
|
|
};
|
||
|
|
}
|
||
|
|
$INPUTS[1].onclick = function () {
|
||
|
|
clear();
|
||
|
|
$R.options.selectedIndex = lastRounding;
|
||
|
|
$DIV.style.display = 'block';
|
||
|
|
bnM = bnMs[this.id];
|
||
|
|
$BD.innerHTML = bdM = bdMs[this.id];
|
||
|
|
};
|
||
|
|
|
||
|
|
// Show/hide BigInteger and disable/un-disable division accordingly as BigInteger
|
||
|
|
// throws an exception if division gives "no exact representable decimal result"
|
||
|
|
$INT.onclick = function () {
|
||
|
|
if (this.checked && $GWT.checked) {
|
||
|
|
if ($INPUTS[1].checked) {
|
||
|
|
$INPUTS[1].checked = false;
|
||
|
|
$INPUTS[0].checked = true;
|
||
|
|
$BD.innerHTML = bdMs[$INPUTS[0].id];
|
||
|
|
$DIV.style.display = 'none';
|
||
|
|
}
|
||
|
|
$INPUTS[1].disabled = true;
|
||
|
|
$BIGINT.style.display = 'inline';
|
||
|
|
} else {
|
||
|
|
$INPUTS[1].disabled = false;
|
||
|
|
$BIGINT.style.display = 'none';
|
||
|
|
}
|
||
|
|
};
|
||
|
|
$ICU4J.onclick = function () {
|
||
|
|
$INPUTS[1].disabled = false;
|
||
|
|
$BIGINT.style.display = 'none';
|
||
|
|
};
|
||
|
|
$GWT.onclick = function () {
|
||
|
|
if ($INT.checked) {
|
||
|
|
if ($INPUTS[1].checked) {
|
||
|
|
$INPUTS[1].checked = false;
|
||
|
|
$INPUTS[0].checked = true;
|
||
|
|
$BD.innerHTML = bdMs[$INPUTS[0].id];
|
||
|
|
$DIV.style.display = 'none';
|
||
|
|
}
|
||
|
|
$INPUTS[1].disabled = true;
|
||
|
|
$BIGINT.style.display = 'inline';
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
BigNumber.config({
|
||
|
|
DECIMAL_PLACES : 20,
|
||
|
|
ROUNDING_MODE : 4,
|
||
|
|
ERRORS : false,
|
||
|
|
RANGE : 1E9,
|
||
|
|
EXPONENTIAL_AT : 1E9
|
||
|
|
});
|
||
|
|
|
||
|
|
// Set defaults
|
||
|
|
$MAX.checked = $INPUTS[0].checked = $GWT.checked = true;
|
||
|
|
$SHOW.checked = $INT.checked = false;
|
||
|
|
$REPS.value = DEFAULT_REPS;
|
||
|
|
$DIGITS.value = DEFAULT_DIGITS;
|
||
|
|
$DP.value = DEFAULT_DECIMAL_PLACES;
|
||
|
|
$R.option = DEFAULT_ROUNDING;
|
||
|
|
|
||
|
|
BigDecimal_GWT = BigDecimal;
|
||
|
|
BigDecimal = undefined;
|
||
|
|
|
||
|
|
// Load ICU4J BigDecimal
|
||
|
|
script = document.createElement("script");
|
||
|
|
script.src = ICU4J_URL;
|
||
|
|
script.onload = script.onreadystatechange = function () {
|
||
|
|
if (!script.readyState || /loaded|complete/.test(script.readyState)) {
|
||
|
|
script = null;
|
||
|
|
BigDecimal_ICU4J = BigDecimal;
|
||
|
|
$START.onmousedown = begin;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
document.getElementsByTagName("head")[0].appendChild(script);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
|
||
|
|
NOTES:
|
||
|
|
|
||
|
|
|
||
|
|
ICU4J
|
||
|
|
=====
|
||
|
|
IBM java package: com.ibm.icu.math
|
||
|
|
pow's argument must be a BigDecimal.
|
||
|
|
Among other differences, doesn't have .toPlainString() or .stripTrailingZeros().
|
||
|
|
Exports BigDecimal only.
|
||
|
|
Much faster than gwt on Firefox, on Chrome it varies with the method.
|
||
|
|
|
||
|
|
|
||
|
|
GWT
|
||
|
|
===
|
||
|
|
Java standard class library: java.math.BigDecimal
|
||
|
|
|
||
|
|
Exports:
|
||
|
|
RoundingMode
|
||
|
|
MathContext
|
||
|
|
BigDecimal
|
||
|
|
BigInteger
|
||
|
|
|
||
|
|
BigDecimal properties:
|
||
|
|
ROUND_CEILING
|
||
|
|
ROUND_DOWN
|
||
|
|
ROUND_FLOOR
|
||
|
|
ROUND_HALF_DOWN
|
||
|
|
ROUND_HALF_EVEN
|
||
|
|
ROUND_HALF_UP
|
||
|
|
ROUND_UNNECESSARY
|
||
|
|
ROUND_UP
|
||
|
|
__init__
|
||
|
|
valueOf
|
||
|
|
log
|
||
|
|
logObj
|
||
|
|
ONE
|
||
|
|
TEN
|
||
|
|
ZERO
|
||
|
|
|
||
|
|
BigDecimal instance properties/methods:
|
||
|
|
( for (var i in new BigDecimal('1').__gwt_instance.__gwtex_wrap) {...} )
|
||
|
|
|
||
|
|
byteValueExact
|
||
|
|
compareTo
|
||
|
|
doubleValue
|
||
|
|
equals
|
||
|
|
floatValue
|
||
|
|
hashCode
|
||
|
|
intValue
|
||
|
|
intValueExact
|
||
|
|
max
|
||
|
|
min
|
||
|
|
movePointLeft
|
||
|
|
movePointRight
|
||
|
|
precision
|
||
|
|
round
|
||
|
|
scale
|
||
|
|
scaleByPowerOfTen
|
||
|
|
shortValueExact
|
||
|
|
signum
|
||
|
|
stripTrailingZeros
|
||
|
|
toBigInteger
|
||
|
|
toBigIntegerExact
|
||
|
|
toEngineeringString
|
||
|
|
toPlainString
|
||
|
|
toString
|
||
|
|
ulp
|
||
|
|
unscaledValue
|
||
|
|
longValue
|
||
|
|
longValueExact
|
||
|
|
abs
|
||
|
|
add
|
||
|
|
divide
|
||
|
|
divideToIntegralValue
|
||
|
|
multiply
|
||
|
|
negate
|
||
|
|
plus
|
||
|
|
pow
|
||
|
|
remainder
|
||
|
|
setScale
|
||
|
|
subtract
|
||
|
|
divideAndRemainder
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|
||
|
|
|