Changeset 16344 for branches/2915-AbsoluteSymbol/HeuristicLab.Tests/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4/SymbolicDataAnalysisExpressionTreeSimplifierTest.cs
- Timestamp:
- 12/06/18 18:59:09 (6 years ago)
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branches/2915-AbsoluteSymbol/HeuristicLab.Tests/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4/SymbolicDataAnalysisExpressionTreeSimplifierTest.cs
r15583 r16344 228 228 AssertEqualAfterSimplification("(- (factor a 2.0 3.0) (binfactor a x0 2.0))", "(factor a 0.0 3.0)"); 229 229 #endregion 230 231 #region abs 232 AssertEqualAfterSimplification("(abs 2.0)", "2.0"); 233 AssertEqualAfterSimplification("(abs -2.0)", "2.0"); // constant folding 234 AssertEqualAfterSimplification("(abs (exp (variable 2.0 x)))", "(exp (variable 2.0 x)))"); // exp is always positive 235 AssertEqualAfterSimplification("(abs (exp (variable 2.0 x)))", "(exp (variable 2.0 x)))"); // exp is always positive 236 AssertEqualAfterSimplification("(abs (sqr (variable 2.0 a)))", "(sqr (variable 2.0 a))"); // sqr is always positive 237 AssertEqualAfterSimplification("(abs (sqrt (variable 2.0 a)))", "(sqrt (variable 2.0 a))"); // sqrt is always positive (for our cases) 238 AssertEqualAfterSimplification("(abs (cuberoot (variable 2.0 a)))", "(cuberoot (variable 2.0 a))"); // cuberoot is always positive (for our cases) 239 240 AssertEqualAfterSimplification("(* (abs (variable 2.0 x)) 2.0)", "(abs (variable 4.0 x))"); // can multiply positive constants into abs 241 AssertEqualAfterSimplification("(* (abs (variable 2.0 x)) -2.0)", "(* (abs (variable 4.0 x)) -1.0)"); // for negative constants keep the sign 242 243 AssertEqualAfterSimplification("(abs (* (variable 1.0 a) (variable 2.0 b)))", "(* (abs (variable 1.0 a)) (abs (variable 1.0 b)) 2.0))"); 244 AssertEqualAfterSimplification("(abs (/ (variable 1.0 a) (variable 2.0 b)))", "(/ (abs (variable 1.0 a)) (abs (variable 2.0 b))))"); 245 #endregion 246 247 #region square and sqrt 248 AssertEqualAfterSimplification("(sqr (sqrt (variable 2.0 x)))", "(variable 2.0 x)"); 249 AssertEqualAfterSimplification("(sqrt (sqr (variable 2.0 x)))", "(variable 2.0 x)"); 250 AssertEqualAfterSimplification("(sqr (abs (variable 2.0 a)))", "(sqr (variable 2.0 a))"); 251 AssertEqualAfterSimplification("(sqr (exp (variable 2.0 x)))", "(exp (variable 4.0 x))"); 252 253 AssertEqualAfterSimplification("(sqr (* (variable 2.0 a) (variable 3.0 b) (variable 4.0 c)))", 254 "(* (sqr (variable 1.0 a)) (sqr (variable 1.0 b)) (sqr (variable 1.0 c)) 576)"); // 2²*3²*4² 255 #endregion 256 257 #region cube and cuberoot 258 AssertEqualAfterSimplification("(cube (cuberoot (variable 2.0 x)))", "(variable 2.0 x)"); 259 AssertEqualAfterSimplification("(cuberoot (cube (variable 2.0 x)))", "(variable 2.0 x)"); 260 AssertEqualAfterSimplification("(cube (exp (variable 2.0 x)))", "(exp (variable 6.0 x))"); 261 262 AssertEqualAfterSimplification("(sqr (cube (variable 2.0 x)))", "(pow (variable 2.0 x) 6)"); 263 AssertEqualAfterSimplification("(cube (sqr (variable 2.0 x)))", "(pow (variable 2.0 x) 6)"); 264 #endregion 265 266 #region AQ 267 AssertEqualAfterSimplification("(* (aq (variable 1.0 x) (variable 1.0 y)) 2.0)", "(aq (variable 2.0 x) (variable 1.0 y))"); 268 AssertEqualAfterSimplification("(/ (aq (variable 1.0 x) (variable 1.0 y)) 2.0)", "(aq (variable 0.5 x) (variable 1.0 y))"); 269 270 #endregion 230 271 } 231 272
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