r(m, "ERF", null);
r(m, "ERFC", null);
r(m, "FACTDOUBLE", FactDouble.instance);
+ r(m, "FLOOR.MATH", FloorMath.instance);
r(m, "FVSCHEDULE", null);
r(m, "GCD", Gcd.instance);
r(m, "GESTEP", null);
import org.apache.poi.ss.formula.eval.OperandResolver;
import org.apache.poi.ss.formula.eval.ValueEval;
-import java.math.BigDecimal;
import java.math.RoundingMode;
+import static org.apache.poi.ss.formula.functions.MathX.scaledRoundUsingBigDecimal;
+
/**
* Implementation for Excel CEILING.MATH() function.
* <ul>
}
if (roundNegativeNumsDown && xval < 0.0) {
if (multiplier != 1.0) {
- return new NumberEval(roundUsingBigDecimal(xval, multiplier, RoundingMode.FLOOR));
+ return new NumberEval(scaledRoundUsingBigDecimal(xval, multiplier, RoundingMode.FLOOR));
}
return new NumberEval(Math.floor(xval));
}
if (multiplier != 1.0) {
- return new NumberEval(roundUsingBigDecimal(xval, multiplier, RoundingMode.CEILING));
+ return new NumberEval(scaledRoundUsingBigDecimal(xval, multiplier, RoundingMode.CEILING));
}
return new NumberEval(Math.ceil(xval));
} catch (EvaluationException evaluationException) {
}
}
- private double roundUsingBigDecimal(double xval, double multiplier, RoundingMode mode) {
- BigDecimal multiplierDecimal = BigDecimal.valueOf(multiplier);
- BigDecimal bd = BigDecimal.valueOf(xval).divide(multiplierDecimal)
- .setScale(0, mode)
- .multiply(multiplierDecimal);
- return bd.doubleValue();
- }
-
private static Double evaluateValue(ValueEval arg, int srcRowIndex, int srcColumnIndex) throws EvaluationException {
ValueEval veText = OperandResolver.getSingleValue(arg, srcRowIndex, srcColumnIndex);
String strText1 = OperandResolver.coerceValueToString(veText);
--- /dev/null
+/* ====================================================================
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================== */
+
+package org.apache.poi.ss.formula.functions;
+
+import org.apache.poi.ss.formula.OperationEvaluationContext;
+import org.apache.poi.ss.formula.eval.ErrorEval;
+import org.apache.poi.ss.formula.eval.EvaluationException;
+import org.apache.poi.ss.formula.eval.NumberEval;
+import org.apache.poi.ss.formula.eval.OperandResolver;
+import org.apache.poi.ss.formula.eval.ValueEval;
+
+import java.math.RoundingMode;
+
+import static org.apache.poi.ss.formula.functions.MathX.scaledRoundUsingBigDecimal;
+
+/**
+ * Implementation for Excel FLOOR.MATH() function.
+ * <ul>
+ * <li>https://support.microsoft.com/en-us/office/floor-math-function-c302b599-fbdb-4177-ba19-2c2b1249a2f5</li>
+ * </ul>
+ */
+public final class FloorMath implements FreeRefFunction {
+
+ public static final FloorMath instance = new FloorMath();
+
+ private FloorMath() {}
+
+ @Override
+ public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {
+ if (args.length == 0) {
+ return ErrorEval.VALUE_INVALID;
+ }
+ try {
+ Double xval = evaluateValue(args[0], ec.getRowIndex(), ec.getColumnIndex());
+ if (xval == null) {
+ return ErrorEval.NUM_ERROR;
+ }
+ double multiplier = 1.0;
+ if (args.length > 1) {
+ Double arg1Val = evaluateValue(args[1], ec.getRowIndex(), ec.getColumnIndex());
+ multiplier = arg1Val != null ? arg1Val.doubleValue() : 1.0;
+ }
+ boolean roundNegativeNumsDown = false;
+ if (args.length > 2) {
+ Double arg2Val = evaluateValue(args[2], ec.getRowIndex(), ec.getColumnIndex());
+ roundNegativeNumsDown = arg2Val != null && arg2Val.doubleValue() < 0.0;
+ }
+ if (roundNegativeNumsDown && xval < 0.0) {
+ if (multiplier != 1.0) {
+ return new NumberEval(scaledRoundUsingBigDecimal(xval, multiplier, RoundingMode.CEILING));
+ }
+ return new NumberEval(Math.ceil(xval));
+ }
+ if (multiplier != 1.0) {
+ return new NumberEval(scaledRoundUsingBigDecimal(xval, multiplier, RoundingMode.FLOOR));
+ }
+ return new NumberEval(Math.floor(xval));
+ } catch (EvaluationException evaluationException) {
+ return evaluationException.getErrorEval();
+ }
+ }
+
+ private static Double evaluateValue(ValueEval arg, int srcRowIndex, int srcColumnIndex) throws EvaluationException {
+ ValueEval veText = OperandResolver.getSingleValue(arg, srcRowIndex, srcColumnIndex);
+ String strText1 = OperandResolver.coerceValueToString(veText);
+ return OperandResolver.parseDouble(strText1);
+ }
+}
\ No newline at end of file
import org.apache.poi.ss.util.NumberToTextConverter;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
/**
* This class is an extension to the standard math library
* provided by java.lang.Math class. It follows the Math class
if (s==0 && n!=0) {
return Double.NaN;
} else {
- return (n==0 || s==0) ? 0 : Math.floor(n/s) * s;
+ if (n == 0.0 || s == 0.0) {
+ return 0.0;
+ } else if (s == 1.0) {
+ return Math.floor(n);
+ } else {
+ return scaledRoundUsingBigDecimal(n, s, RoundingMode.FLOOR);
+ }
}
}
if (n>0 && s<0) {
return Double.NaN;
} else {
- return (n == 0 || s == 0) ? 0 : Math.ceil(n/s) * s;
+ if (n == 0.0 || s == 0.0) {
+ return 0.0;
+ } else if (s == 1.0) {
+ return Math.ceil(n);
+ } else {
+ return scaledRoundUsingBigDecimal(n, s, RoundingMode.CEILING);
+ }
}
}
+ public static double scaledRoundUsingBigDecimal(double xval, double multiplier, RoundingMode mode) {
+ BigDecimal multiplierDecimal = BigDecimal.valueOf(multiplier);
+ BigDecimal bd = BigDecimal.valueOf(xval).divide(multiplierDecimal)
+ .setScale(0, mode)
+ .multiply(multiplierDecimal);
+ return bd.doubleValue();
+ }
+
/**
* <br> for all n >= 1; factorial n = n * (n-1) * (n-2) * ... * 1
* <br> else if n == 0; factorial n = 1
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
-import org.apache.poi.ss.formula.OperationEvaluationContext;
-import org.apache.poi.ss.formula.eval.ErrorEval;
import org.apache.poi.ss.usermodel.FormulaError;
import org.junit.jupiter.api.Test;
*/
final class TestCeilingMath {
- private static final OperationEvaluationContext ec = new OperationEvaluationContext(null, null, 0, 0, 0, null);
-
//https://support.microsoft.com/en-us/office/ceiling-math-function-80f95d2f-b499-4eee-9f16-f795a8e306c8
@Test
void testMicrosoftExamples() throws IOException {
--- /dev/null
+/* ====================================================================
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================== */
+
+package org.apache.poi.ss.formula.functions;
+
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFRow;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.usermodel.FormulaError;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.apache.poi.ss.util.Utils.assertDouble;
+import static org.apache.poi.ss.util.Utils.assertError;
+
+/**
+ * Tests for {@link FloorMath}
+ */
+final class TestFloorMath {
+
+ //https://support.microsoft.com/en-us/office/floor-math-function-c302b599-fbdb-4177-ba19-2c2b1249a2f5
+ @Test
+ void testMicrosoftExamples() throws IOException {
+ try (HSSFWorkbook wb = new HSSFWorkbook()) {
+ HSSFSheet sheet = wb.createSheet();
+ HSSFRow row = sheet.createRow(0);
+ HSSFCell cell = row.createCell(0);
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ assertDouble(fe, cell, "FLOOR.MATH(24.3,5)", 20.0, 0.00000000000001);
+ assertDouble(fe, cell, "FLOOR.MATH(6.7)", 6.0, 0.00000000000001);
+ assertDouble(fe, cell, "FLOOR.MATH(-8.1,2)", -10.0, 0.00000000000001);
+ assertDouble(fe, cell, "FLOOR.MATH(-5.5,2,-1)", -4.0, 0.00000000000001);
+ }
+ }
+
+ @Test
+ void testInvalid() throws IOException {
+ try (HSSFWorkbook wb = new HSSFWorkbook()) {
+ HSSFSheet sheet = wb.createSheet();
+ HSSFRow row = sheet.createRow(0);
+ HSSFCell cell = row.createCell(0);
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ assertError(fe, cell, "FLOOR.MATH()", FormulaError.VALUE);
+ }
+ }
+
+ @Test
+ void testNumError() throws IOException {
+ try (HSSFWorkbook wb = new HSSFWorkbook()) {
+ HSSFSheet sheet = wb.createSheet();
+ HSSFRow row = sheet.createRow(0);
+ HSSFCell cell = row.createCell(0);
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ assertError(fe, cell, "FLOOR.MATH(\"abc\")", FormulaError.NUM);
+ }
+ }
+}
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