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True engineering number formatting

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This commit is contained in:
serso 2016-04-03 00:46:58 +02:00
parent f5a9f30e04
commit d9e9380a6d
4 changed files with 299 additions and 114 deletions
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193
jscl/src/main/java/jscl/JsclMathEngine.java
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@ -9,6 +9,7 @@ import jscl.math.operator.Percent;
import jscl.math.operator.Rand; import jscl.math.operator.Rand;
import jscl.math.operator.matrix.OperatorsRegistry; import jscl.math.operator.matrix.OperatorsRegistry;
import jscl.text.ParseException; import jscl.text.ParseException;
import midpcalc.Real;
import org.solovyev.common.math.MathRegistry; import org.solovyev.common.math.MathRegistry;
import org.solovyev.common.msg.MessageRegistry; import org.solovyev.common.msg.MessageRegistry;
import org.solovyev.common.msg.Messages; import org.solovyev.common.msg.Messages;
@ -29,7 +30,22 @@ public class JsclMathEngine implements MathEngine {
public static final int MAX_FRACTION_DIGITS = 20; public static final int MAX_FRACTION_DIGITS = 20;
@Nonnull @Nonnull
private static JsclMathEngine instance = new JsclMathEngine(); private static JsclMathEngine instance = new JsclMathEngine();
@Nonnull
private final ConstantsRegistry constantsRegistry = new ConstantsRegistry();
@Nonnull
private final ThreadLocal<DecimalFormat> defaultNumbersFormat = new ThreadLocal<DecimalFormat>() {
@Override
protected DecimalFormat initialValue() {
return new DecimalFormat();
}
};
@Nonnull
private final ThreadLocal<DecimalFormat> smallNumbersFormat = new ThreadLocal<DecimalFormat>() {
@Override
protected DecimalFormat initialValue() {
return new DecimalFormat("##0.#####E0");
}
};
@Nonnull @Nonnull
private DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault()); private DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault());
private boolean roundResult = false; private boolean roundResult = false;
@ -41,8 +57,6 @@ public class JsclMathEngine implements MathEngine {
@Nonnull @Nonnull
private NumeralBase numeralBase = DEFAULT_NUMERAL_BASE; private NumeralBase numeralBase = DEFAULT_NUMERAL_BASE;
@Nonnull @Nonnull
private final ConstantsRegistry constantsRegistry = new ConstantsRegistry();
@Nonnull
private MessageRegistry messageRegistry = Messages.synchronizedMessageRegistry(new FixedCapacityListMessageRegistry(10)); private MessageRegistry messageRegistry = Messages.synchronizedMessageRegistry(new FixedCapacityListMessageRegistry(10));
{ {
@ -150,71 +164,128 @@ public class JsclMathEngine implements MathEngine {
@Nonnull @Nonnull
public String format(@Nonnull Double value, @Nonnull NumeralBase nb) throws NumeralBaseException { public String format(@Nonnull Double value, @Nonnull NumeralBase nb) throws NumeralBaseException {
if (value.isInfinite()) { if (value.isInfinite()) {
// return predefined constant for infinity return formatInfinity(value);
if (value >= 0) { } else if (value.isNaN()) {
return Constants.INF.getName(); // return "NaN"
} else { return String.valueOf(value);
return Constants.INF.expressionValue().negate().toString(); } else if (nb == NumeralBase.dec) {
} return formatDec(value);
} else { } else {
if (value.isNaN()) { return convert(value, nb);
// return "NaN" }
return String.valueOf(value); }
} else {
if (nb == NumeralBase.dec) {
// decimal numeral base => do specific formatting
// detect if current number is precisely equals to constant in constants' registry (NOTE: ONLY FOR SYSTEM CONSTANTS) private String formatDec(@Nonnull Double value) {
IConstant constant = findConstant(getConstantsRegistry().getSystemEntities(), value); if (value == 0d) {
return "0";
}
// detect if current number is precisely equals to constant in constants' registry (NOTE: ONLY FOR SYSTEM CONSTANTS)
final IConstant constant = findConstant(value);
if (constant != null) {
return constant.getName();
}
if (constant == null) { if (scienceNotation) {
final IConstant piInv = this.getConstantsRegistry().get(Constants.PI_INV.getName()); return formatDecEngineering(value);
if (piInv != null && value.equals(piInv.getDoubleValue())) { }
constant = piInv;
}
}
if (constant == null) { return formatDecDefault(value);
// prepare decimal format }
final DecimalFormat df;
if (roundResult) { @Nonnull
value = new BigDecimal(value).setScale(precision, BigDecimal.ROUND_HALF_UP).doubleValue(); private String formatDecEngineering(@Nonnull Double value) {
} final double absValue = Math.abs(value);
final boolean smallNumber = absValue < 1 && absValue >= 0.001;
final Real.NumberFormat nf = new Real.NumberFormat();
nf.fse = smallNumber ? Real.NumberFormat.FSE_FIX : Real.NumberFormat.FSE_ENG;
if (useGroupingSeparator) {
nf.thousand = decimalGroupSymbols.getGroupingSeparator();
}
if (roundResult) {
nf.precision = precision;
}
final Real real = new Real(Double.toString(value));
return stripTrailingZeros(real.toString(nf));
}
if (value != 0d && value != -0d) { @Nonnull
if (Math.abs(value) < Math.pow(10, -5) || scienceNotation) { private String stripTrailingZeros(@Nonnull String s) {
df = new DecimalFormat("##0.#####E0"); final int dot = s.indexOf('.');
} else { if (dot < 0) {
df = new DecimalFormat(); // no dot - no trailing zeros
} return s;
} else { }
df = new DecimalFormat(); final int e = s.lastIndexOf('E');
} final int start;
String exponent = "";
df.setDecimalFormatSymbols(decimalGroupSymbols); if (e > 0) {
df.setGroupingUsed(useGroupingSeparator); exponent = s.substring(e);
df.setGroupingSize(nb.getGroupingSize()); if (exponent.length() == 2 && exponent.charAt(1) == '0') {
exponent = "";
if (!scienceNotation) {
// using default round logic => try roundResult variable
if (!roundResult) {
// set maximum fraction digits high enough to show all fraction digits in case of no rounding
df.setMaximumFractionDigits(MAX_FRACTION_DIGITS);
} else {
df.setMaximumFractionDigits(precision);
}
}
return df.format(value);
} else {
return constant.getName();
}
} else {
return convert(value, nb);
}
} }
start = e - 1;
} else {
start = s.length() - 1;
}
final int i = findLastNonZero(s, start);
return s.substring(0, i == dot ? i : i + 1) + exponent;
}
private int findLastNonZero(String s, int start) {
int i = start;
for (; i >= 0; i--) {
if (s.charAt(i) != '0') {
break;
}
}
return i;
}
@Nonnull
private String formatDecDefault(@Nonnull Double value) {
final BigDecimal bd;
if (roundResult) {
bd = BigDecimal.valueOf(value).setScale(precision, BigDecimal.ROUND_HALF_UP);
} else {
bd = BigDecimal.valueOf(value);
}
value = bd.doubleValue();
if (value == 0) {
return "0";
}
final DecimalFormat df = Math.abs(value) < Math.pow(10, -5) ? smallNumbersFormat.get() : defaultNumbersFormat.get();
df.setDecimalFormatSymbols(decimalGroupSymbols);
df.setGroupingUsed(useGroupingSeparator);
df.setGroupingSize(NumeralBase.dec.getGroupingSize());
if (roundResult) {
df.setMaximumFractionDigits(precision);
} else {
// set maximum fraction digits high enough to show all fraction digits in case of no rounding
df.setMaximumFractionDigits(MAX_FRACTION_DIGITS);
}
return df.format(value);
}
@Nullable
private IConstant findConstant(@Nonnull Double value) {
final IConstant constant = findConstant(constantsRegistry.getSystemEntities(), value);
if (constant != null) {
return constant;
}
final IConstant piInv = constantsRegistry.get(Constants.PI_INV.getName());
if (piInv != null && value.equals(piInv.getDoubleValue())) {
return piInv;
}
return null;
}
private String formatInfinity(@Nonnull Double value) {
// return predefined constant for infinity
if (value >= 0) {
return Constants.INF.getName();
} else {
return Constants.INF.expressionValue().negate().toString();
} }
} }

2
jscl/src/main/java/midpcalc/Real.java
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@ -6599,7 +6599,7 @@ public final class Real {
width -= prefix; width -= prefix;
ftoaExp.setLength(0); ftoaExp.setLength(0);
if (useExp) { if (useExp) {
ftoaExp.append('e'); ftoaExp.append('E');
ftoaExp.append(tmp4.exponent - pointPos); ftoaExp.append(tmp4.exponent - pointPos);
width -= ftoaExp.length(); width -= ftoaExp.length();
} }

204
jscl/src/test/java/jscl/JsclMathEngineTest.java
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@ -1,8 +1,9 @@
package jscl; package jscl;
import org.junit.Assert;
import org.junit.Test; import org.junit.Test;
import static org.junit.Assert.assertEquals;
/** /**
* User: serso * User: serso
* Date: 12/15/11 * Date: 12/15/11
@ -15,70 +16,177 @@ public class JsclMathEngineTest {
try { try {
me.setUseGroupingSeparator(true); me.setUseGroupingSeparator(true);
Assert.assertEquals("1", me.format(1d, NumeralBase.bin)); assertEquals("1", me.format(1d, NumeralBase.bin));
Assert.assertEquals("10", me.format(2d, NumeralBase.bin)); assertEquals("10", me.format(2d, NumeralBase.bin));
Assert.assertEquals("11", me.format(3d, NumeralBase.bin)); assertEquals("11", me.format(3d, NumeralBase.bin));
Assert.assertEquals("100", me.format(4d, NumeralBase.bin)); assertEquals("100", me.format(4d, NumeralBase.bin));
Assert.assertEquals("101", me.format(5d, NumeralBase.bin)); assertEquals("101", me.format(5d, NumeralBase.bin));
Assert.assertEquals("110", me.format(6d, NumeralBase.bin)); assertEquals("110", me.format(6d, NumeralBase.bin));
Assert.assertEquals("111", me.format(7d, NumeralBase.bin)); assertEquals("111", me.format(7d, NumeralBase.bin));
Assert.assertEquals("1000", me.format(8d, NumeralBase.bin)); assertEquals("1000", me.format(8d, NumeralBase.bin));
Assert.assertEquals("1001", me.format(9d, NumeralBase.bin)); assertEquals("1001", me.format(9d, NumeralBase.bin));
Assert.assertEquals("1 0001", me.format(17d, NumeralBase.bin)); assertEquals("1 0001", me.format(17d, NumeralBase.bin));
Assert.assertEquals("1 0100", me.format(20d, NumeralBase.bin)); assertEquals("1 0100", me.format(20d, NumeralBase.bin));
Assert.assertEquals("1 0100", me.format(20d, NumeralBase.bin)); assertEquals("1 0100", me.format(20d, NumeralBase.bin));
Assert.assertEquals("1 1111", me.format(31d, NumeralBase.bin)); assertEquals("1 1111", me.format(31d, NumeralBase.bin));
me.setRoundResult(true); me.setRoundResult(true);
me.setPrecision(10); me.setPrecision(10);
Assert.assertEquals("111 1111 0011 0110", me.format(32566d, NumeralBase.bin)); assertEquals("111 1111 0011 0110", me.format(32566d, NumeralBase.bin));
Assert.assertEquals("100.0100 1100 11", me.format(4.3d, NumeralBase.bin)); assertEquals("100.0100 1100 11", me.format(4.3d, NumeralBase.bin));
Assert.assertEquals("1 0001 0101 0011.0101 0101 10", me.format(4435.33423d, NumeralBase.bin)); assertEquals("1 0001 0101 0011.0101 0101 10", me.format(4435.33423d, NumeralBase.bin));
Assert.assertEquals("1100.0101 0101 01", me.format(12.3333d, NumeralBase.bin)); assertEquals("1100.0101 0101 01", me.format(12.3333d, NumeralBase.bin));
Assert.assertEquals("1 0011 1101 1110 0100 0011 0101 0101.0001 1111 00", me.format(333333333.1212213321d, NumeralBase.bin)); assertEquals("1 0011 1101 1110 0100 0011 0101 0101.0001 1111 00", me.format(333333333.1212213321d, NumeralBase.bin));
Assert.assertEquals("0.EE EE EE EE EE", me.format(14d / 15d, NumeralBase.hex)); assertEquals("0.EE EE EE EE EE", me.format(14d / 15d, NumeralBase.hex));
Assert.assertEquals("7F 36", me.format(32566d, NumeralBase.hex)); assertEquals("7F 36", me.format(32566d, NumeralBase.hex));
Assert.assertEquals("24", me.format(36d, NumeralBase.hex)); assertEquals("24", me.format(36d, NumeralBase.hex));
Assert.assertEquals("8", me.format(8d, NumeralBase.hex)); assertEquals("8", me.format(8d, NumeralBase.hex));
Assert.assertEquals("1 3D", me.format(317d, NumeralBase.hex)); assertEquals("1 3D", me.format(317d, NumeralBase.hex));
Assert.assertEquals("13 DE 43 55.1F 08 5B EF 14", me.format(333333333.1212213321d, NumeralBase.hex)); assertEquals("13 DE 43 55.1F 08 5B EF 14", me.format(333333333.1212213321d, NumeralBase.hex));
Assert.assertEquals("D 25 0F 77 0A.6F 73 18 FC 50", me.format(56456345354.43534534523459999d, NumeralBase.hex)); assertEquals("D 25 0F 77 0A.6F 73 18 FC 50", me.format(56456345354.43534534523459999d, NumeralBase.hex));
Assert.assertEquals("3 E7.4C CC CC CC CC", me.format(999.3d, NumeralBase.hex)); assertEquals("3 E7.4C CC CC CC CC", me.format(999.3d, NumeralBase.hex));
me.setRoundResult(false); me.setRoundResult(false);
Assert.assertEquals("0.00 00 00 00 00 00 00 00 00 6C", me.format(0.00000000000000000000009d, NumeralBase.hex)); assertEquals("0.00 00 00 00 00 00 00 00 00 6C", me.format(0.00000000000000000000009d, NumeralBase.hex));
Assert.assertEquals("0.00 00 00 00 00 00 00 00 00 0A", me.format(0.000000000000000000000009d, NumeralBase.hex)); assertEquals("0.00 00 00 00 00 00 00 00 00 0A", me.format(0.000000000000000000000009d, NumeralBase.hex));
} finally { } finally {
me.setUseGroupingSeparator(false); me.setUseGroupingSeparator(false);
} }
Assert.assertEquals("1", me.format(1d, NumeralBase.bin)); assertEquals("1", me.format(1d, NumeralBase.bin));
Assert.assertEquals("10", me.format(2d, NumeralBase.bin)); assertEquals("10", me.format(2d, NumeralBase.bin));
Assert.assertEquals("11", me.format(3d, NumeralBase.bin)); assertEquals("11", me.format(3d, NumeralBase.bin));
Assert.assertEquals("100", me.format(4d, NumeralBase.bin)); assertEquals("100", me.format(4d, NumeralBase.bin));
Assert.assertEquals("101", me.format(5d, NumeralBase.bin)); assertEquals("101", me.format(5d, NumeralBase.bin));
Assert.assertEquals("110", me.format(6d, NumeralBase.bin)); assertEquals("110", me.format(6d, NumeralBase.bin));
Assert.assertEquals("111", me.format(7d, NumeralBase.bin)); assertEquals("111", me.format(7d, NumeralBase.bin));
Assert.assertEquals("1000", me.format(8d, NumeralBase.bin)); assertEquals("1000", me.format(8d, NumeralBase.bin));
Assert.assertEquals("1001", me.format(9d, NumeralBase.bin)); assertEquals("1001", me.format(9d, NumeralBase.bin));
Assert.assertEquals("10001", me.format(17d, NumeralBase.bin)); assertEquals("10001", me.format(17d, NumeralBase.bin));
Assert.assertEquals("10100", me.format(20d, NumeralBase.bin)); assertEquals("10100", me.format(20d, NumeralBase.bin));
Assert.assertEquals("10100", me.format(20d, NumeralBase.bin)); assertEquals("10100", me.format(20d, NumeralBase.bin));
Assert.assertEquals("11111", me.format(31d, NumeralBase.bin)); assertEquals("11111", me.format(31d, NumeralBase.bin));
Assert.assertEquals("111111100110110", me.format(32566d, NumeralBase.bin)); assertEquals("111111100110110", me.format(32566d, NumeralBase.bin));
Assert.assertEquals("7F36", me.format(32566d, NumeralBase.hex)); assertEquals("7F36", me.format(32566d, NumeralBase.hex));
Assert.assertEquals("24", me.format(36d, NumeralBase.hex)); assertEquals("24", me.format(36d, NumeralBase.hex));
Assert.assertEquals("8", me.format(8d, NumeralBase.hex)); assertEquals("8", me.format(8d, NumeralBase.hex));
Assert.assertEquals("13D", me.format(317d, NumeralBase.hex)); assertEquals("13D", me.format(317d, NumeralBase.hex));
} }
@Test @Test
public void testPiComputation() throws Exception { public void testPiComputation() throws Exception {
final JsclMathEngine me = JsclMathEngine.getInstance(); final JsclMathEngine me = JsclMathEngine.getInstance();
Assert.assertEquals("-1+122.46467991473532E-18*i", me.evaluate("exp(√(-1)*Π)")); assertEquals("-1+122.46467991473532E-18*i", me.evaluate("exp(√(-1)*Π)"));
}
@Test
public void testEngineeringNotationWithRounding() throws Exception {
final JsclMathEngine me = JsclMathEngine.getInstance();
me.setScienceNotation(true);
me.setRoundResult(true);
me.setPrecision(5);
assertEquals("10E6", me.format(10000000d));
assertEquals("99E6", me.format(99000000d));
assertEquals("999E6", me.format(999000000d));
assertEquals("999E6", me.format(999000001d));
assertEquals("999.00001E6", me.format(999000011d));
assertEquals("1E6", me.format(1000000d));
assertEquals("111.11E3", me.format(111110d));
assertEquals("111.1E3", me.format(111100d));
assertEquals("111E3", me.format(111000d));
assertEquals("110E3", me.format(110000d));
assertEquals("100E3", me.format(100000d));
assertEquals("10E3", me.format(10000d));
assertEquals("1E3", me.format(1000d));
assertEquals("100", me.format(100d));
assertEquals("100.1", me.format(100.1d));
assertEquals("100.12", me.format(100.12d));
assertEquals("100.12345", me.format(100.123454d));
assertEquals("100.12346", me.format(100.123455d));
assertEquals("100.12346", me.format(100.123456d));
assertEquals("1", me.format(1d));
assertEquals("-42", me.format(-42d));
assertEquals("-999", me.format(-999d));
assertEquals("-999.99", me.format(-999.99d));
assertEquals("-0.1", me.format(-0.1d));
assertEquals("-0.12", me.format(-0.12d));
assertEquals("-0.123", me.format(-0.123d));
assertEquals("-0.1234", me.format(-0.1234d));
assertEquals("0.1", me.format(0.1));
assertEquals("0.01", me.format(0.01));
assertEquals("0.001", me.format(0.001));
assertEquals("0.001", me.format(0.00100000001));
assertEquals("0.0011", me.format(0.0011));
assertEquals("999.999E-6", me.format(0.000999999));
assertEquals("100E-6", me.format(0.0001));
assertEquals("1E-6", me.format(0.000001));
assertEquals("10E-9", me.format(0.00000001));
assertEquals("-100.001E3", me.format(-100001d));
assertEquals("100.001E3", me.format(100001d));
assertEquals("111.111E3", me.format(111111d));
assertEquals("111.11123E3", me.format(111111.234567d));
assertEquals("111.11123E3", me.format(111111.23456d));
assertEquals("111.11123E3", me.format(111111.2345d));
assertEquals("111.11123E3", me.format(111111.2345d));
assertEquals("111.11123E3", me.format(111111.234d));
assertEquals("111.11123E3", me.format(111111.23d));
assertEquals("111.1112E3", me.format(111111.2d));
}
@Test
public void testEngineeringNotationWithoutRounding() throws Exception {
final JsclMathEngine me = JsclMathEngine.getInstance();
me.setScienceNotation(true);
me.setRoundResult(false);
assertEquals("10E6", me.format(10000000d));
assertEquals("99E6", me.format(99000000d));
assertEquals("999E6", me.format(999000000d));
assertEquals("999.000001E6", me.format(999000001d));
assertEquals("999.000011E6", me.format(999000011d));
assertEquals("1E6", me.format(1000000d));
assertEquals("111.11E3", me.format(111110d));
assertEquals("111.1E3", me.format(111100d));
assertEquals("111E3", me.format(111000d));
assertEquals("110E3", me.format(110000d));
assertEquals("100E3", me.format(100000d));
assertEquals("10E3", me.format(10000d));
assertEquals("1E3", me.format(1000d));
assertEquals("100", me.format(100d));
assertEquals("100.1", me.format(100.1d));
assertEquals("100.12", me.format(100.12d));
assertEquals("100.123454", me.format(100.123454d));
assertEquals("100.123455", me.format(100.123455d));
assertEquals("100.123456", me.format(100.123456d));
assertEquals("1", me.format(1d));
assertEquals("-42", me.format(-42d));
assertEquals("-999", me.format(-999d));
assertEquals("-999.99", me.format(-999.99d));
assertEquals("-0.1", me.format(-0.1d));
assertEquals("-0.12", me.format(-0.12d));
assertEquals("-0.123", me.format(-0.123d));
assertEquals("-0.1234", me.format(-0.1234d));
assertEquals("0.1", me.format(0.1));
assertEquals("0.01", me.format(0.01));
assertEquals("0.001", me.format(0.001));
assertEquals("0.0011", me.format(0.0011));
assertEquals("999.999E-6", me.format(0.000999999));
assertEquals("100E-6", me.format(0.0001));
assertEquals("100.001E3", me.format(100001d));
assertEquals("111.111E3", me.format(111111d));
assertEquals("111.111234567E3", me.format(111111.234567d));
assertEquals("111.11123456E3", me.format(111111.23456d));
assertEquals("111.1112345E3", me.format(111111.2345d));
assertEquals("111.1112345E3", me.format(111111.2345d));
assertEquals("111.111234E3", me.format(111111.234d));
assertEquals("111.11123E3", me.format(111111.23d));
assertEquals("111.1112E3", me.format(111111.2d));
} }
} }

14
jscl/src/test/java/jscl/math/ExpressionTest.java
View File

@ -798,13 +798,19 @@ public class ExpressionTest {
me.setScienceNotation(true); me.setScienceNotation(true);
Assert.assertEquals("0", Expression.valueOf("0.0").simplify().toString()); Assert.assertEquals("0", Expression.valueOf("0.0").simplify().toString());
Assert.assertEquals("1E0", Expression.valueOf("1.0").simplify().toString()); Assert.assertEquals("1", Expression.valueOf("1.0").simplify().toString());
Assert.assertEquals("100E0", Expression.valueOf("100.0").simplify().toString()); Assert.assertEquals("100", Expression.valueOf("100.0").simplify().toString());
me.setScienceNotation(false);
me.setRoundResult(true); me.setRoundResult(true);
me.setPrecision(5); me.setPrecision(5);
Assert.assertEquals("0", Expression.valueOf("1222/(10^9)").numeric().toString()); Assert.assertEquals("0", Expression.valueOf("1222/(10^9)").numeric().toString());
me.setScienceNotation(true);
me.setRoundResult(true);
me.setPrecision(5);
Assert.assertEquals("1.222E-6", Expression.valueOf("1222/(10^9)").numeric().toString());
me.setRoundResult(true); me.setRoundResult(true);
me.setPrecision(10); me.setPrecision(10);
Assert.assertEquals("1.222E-6", Expression.valueOf("1222/(10^9)").numeric().toString()); Assert.assertEquals("1.222E-6", Expression.valueOf("1222/(10^9)").numeric().toString());
@ -816,11 +822,11 @@ public class ExpressionTest {
Assert.assertEquals("0.3333333333333333", Expression.valueOf("1/3").numeric().toString()); Assert.assertEquals("0.3333333333333333", Expression.valueOf("1/3").numeric().toString());
me.setScienceNotation(true); me.setScienceNotation(true);
Assert.assertEquals("333.33333E-3", Expression.valueOf("1/3").numeric().toString()); Assert.assertEquals("0.3333333333333333", Expression.valueOf("1/3").numeric().toString());
me.setRoundResult(true); me.setRoundResult(true);
me.setPrecision(10); me.setPrecision(10);
Assert.assertEquals("333.33333E-3", Expression.valueOf("1/3").numeric().toString()); Assert.assertEquals("0.3333333333", Expression.valueOf("1/3").numeric().toString());
me.setScienceNotation(false); me.setScienceNotation(false);
me.setRoundResult(true); me.setRoundResult(true);