Tag: expression-test

87 How to check if a 2D point is in a polygon? 2012-08-14T08:29:52.683

31 _?NumericQ equivalent for lists 2012-12-20T13:52:06.990

26 Is there a GraphicsPrimitiveQ (or a complete list of Heads of graphics primitives)? 2015-07-15T21:04:41.333

25 How to check if an expression is a real-valued number 2013-01-28T23:28:24.453

25 Does Mathematica store hidden information for matrix objects? 2015-05-07T21:17:47.617

24 Implementing a safe ValueQ that does not evaluate its argument 2012-02-08T00:59:42.303

23 Fastest square number test 2012-01-21T14:02:47.333

23 Which second arguments is VectorQ/MatrixQ/ArrayQ optimized for? 2018-10-23T14:37:42.350

22 Determine whether some expression contains a given symbol 2012-08-23T17:31:49.863

22 Why no RationalQ or RealQ? 2018-09-12T13:31:15.903

21 Why does Mathematica claim there is no even prime? 2012-01-24T11:57:11.883

21 How do you check if there are any equal arguments(even sublist) in a list? 2012-06-13T08:34:09.603

20 How to check if a vector is an eigenvector of a matrix using mathematica? 2017-11-27T19:16:35.023

18 How can I test properties of a symbol from the string name without the symbol completely evaluating 2012-01-18T19:02:50.963

18 Checking if a point is in a convex 3D polyhedron 2012-11-25T22:45:52.130

17 A bug in the overloading of MemberQ and FreeQ for Association? 2014-10-08T18:23:02.260

17 Is it OK that SameQ considers expressions identical, although they have different structure? 2016-03-03T04:35:00.400

16 How do I get Mathematica to return a function call unevaluated? 2014-05-22T13:26:57.787

16 Broken ValueQ function in Mma12.2? 2021-01-08T18:55:19.050

14 How can one write a robust ListableQ function? 2013-09-01T13:31:20.437

14 Unexpected slowness checking for empty list? 2015-03-25T01:04:29.760

14 IsomorphicGraphQ fails to recognize that two empty graphs are identical 2015-07-19T10:36:34.230

14 Checking if a word exists 2018-03-17T17:46:11.247

14 Why is IsomorphicGraphQ so very slow (in this instance) 2019-03-21T05:14:24.290

13 Better way to test that a matrix is upper-triangular? 2014-09-19T02:44:49.730

12 Why does Assuming[x > 0, TrueQ[x > 0]] return False? 2012-03-26T22:42:11.120

12 Evaluating an If condition to yield True/False 2012-07-27T23:36:05.463

12 ValueQ returns false positive for one argument type only 2015-11-05T03:05:45.497

12 Why is an empty list not tested by VectorQ? 2016-03-30T11:31:23.673

11 How am I misusing EvenQ, or, how are EvenQ and (Mod[2,#]==0)& differently evaluated? 2017-03-05T08:58:17.763

11 Test if a list is a constant integer multiple of another list 2017-10-13T19:38:47.033

11 1 is not the SameQ as Null, but why might 1 be Equal to Null? 2017-11-10T09:16:42.550

11 About shorthand notation for conditional pattern (Paul Wellin "Essentials of Programming in Mathematica") 2018-10-13T09:45:16.113

10 How to check if a database connection is open? 2012-09-14T23:53:51.980

10 How to detect if a sequence of integers is consecutive 2013-12-21T12:45:32.470

10 TrueQ returning False on true statement 2014-07-26T10:16:57.287

10 Difficulty understanding difference between == and === 2015-11-07T21:04:39.900

10 UnitaryMatrixQ function not returning true for a unitary matrix 2016-02-10T20:27:04.423

9 How does Mathematica decide that Log[2,8] is integer? 2012-10-18T08:02:05.387

9 Bug in PositiveDefiniteMatrixQ? 2014-06-28T13:52:44.283

9 Test for non-numeric variables 2016-03-26T18:12:44.100

9 Ordering real numeric quantities 2017-01-26T01:45:04.453

9 Is there a defined priority for pattern matching? 2019-02-27T00:43:37.400

9 How to speed up GeoWithinQ? 2019-04-18T08:20:10.857

8 Using OddQ and EvenQ in piecewise functions: Buggy? 2016-03-04T19:08:05.617

8 Can anyone guess what Internal`RadicalMemberQ does? 2016-06-12T08:48:29.547

8 A hack for aggressive type-checking? 2017-03-27T18:32:15.217

8 TagSet for symbol inside NumericQ behaves differently than in other fooQ functions 2017-08-17T15:25:02.313

8 How to check is there any negative term in a large list? 2019-03-27T13:57:31.727

8 how to write a condition for all elements of a list 2019-11-28T05:55:28.127

7 Mystery with ValueQ 2013-12-25T18:55:03.107

7 SameQ for unsorted lists 2015-06-06T19:51:09.133

7 How to test whether a function is positive over the entire range of an interval? 2016-01-30T19:54:23.243

7 Configurable tolerance for numerical equality? 2016-02-28T13:08:35.983

7 How to test if a GeoPosition is inside a geographic Polygon? 2016-05-19T15:02:02.497

7 Checking if all the variables are present in the defined function 2016-08-01T09:31:04.960

7 Why does `SameQ` act inconsistently with `Image`s wrapped in `{}` versus not? 2016-08-15T20:13:40.260

6 Why does PolynomialQ[x^n, x] return False? 2013-12-23T02:41:03.757

6 Checking through an expression 2014-01-29T12:53:06.430

6 RegionMember with some tolerance? 2014-10-17T09:19:01.827

6 Determine if all the zeros in a list occur at the end 2015-03-03T22:17:09.713

6 when two associations are equal? 2015-06-01T15:55:50.067

6 Faster square test for integers 2015-12-16T00:03:10.713

6 Rapidly testing for exact vs. inexact expressions 2016-06-04T13:35:32.907

6 Can I make IsomorphicGraphQ consider other properties besides the EdgeRules? 2016-07-19T17:08:54.910

6 NumericQ exercise in Wagner 2016-08-14T16:03:01.747

6 Difference between != and =!= 2017-08-13T21:32:21.520

5 lists of conditions 2012-10-22T12:30:38.833

5 Why is an integer not considered as a real? 2012-10-22T18:01:15.953

5 How to check if a given expression is an "explicit algebraic number"? 2013-06-06T02:26:57.317

5 ParallelMemberQ 2015-06-03T14:00:11.760

5 Picking points in a plane under a curve given by a list 2015-10-18T10:44:49.753

5 time complexity of MemberQ 2016-06-19T17:58:18.317

5 What is the purpose of MatchLocalNameQ? 2016-12-18T16:40:38.403

5 Determine whether some expression contains a symbol doing nothing? 2017-05-07T14:00:29.980

5 Optional in MatchQ 2017-05-30T10:52:28.620

5 PrimitiveMatrixQ? 2017-07-06T09:56:49.467

5 How to judge if two Dataset are equal 2017-07-08T01:44:41.570

5 RegionMember with geographical data 2017-07-10T16:37:17.063

5 Testing for membership with Bags? 2018-04-13T00:43:33.530

5 How do I check if proportion of values in list are mostly positive? 2019-12-02T16:42:12.560

5 Equality for floats 2020-04-05T03:09:50.570

4 How does RootOfUnityQ work? 2012-08-01T18:36:31.320

4 How can I test properties of a symbol without unwanted evaluation 2013-06-11T14:21:41.123

4 Can Mathematica point out why it thinks two symbolic expressions are different? 2015-09-25T01:44:17.223

4 Testing for nontrivial evaluation 2016-04-03T05:18:21.453

4 Using ValueQ to test whether "hash" key exists fails when key is given as variable 2016-04-20T15:28:36.733

4 How to know from which position two vectors begin to be distinct? 2016-10-04T10:57:35.733

4 Condition syntax: "when equal to any of" 2017-07-26T19:17:55.857

4 Check if number is irrational/transcendental 2018-03-05T15:25:38.677

4 Dimensions of list used in test 2019-06-21T20:47:43.953

4 Compare 2 expressions with variables 2020-06-02T18:55:25.363

4 How can we create a FunctionQ function? 2020-06-07T15:34:08.617

4 how to make my own `PrimeQ` function? 2020-06-09T19:39:02.827

3 Finding similar expressions in list 2014-03-24T15:30:48.977

3 Why does pattern test not work in this case to restrict the function parameters? 2014-07-06T09:35:58.410

3 Nested If statement with unevaluated arguments 2015-04-07T21:01:57.713

3 Count number of summands? 2015-12-03T16:59:24.670

3 Where is URLExistsQ in version 11? 2016-11-24T04:32:29.217