Skip to main content
Dr. belisarius's user avatar
Dr. belisarius's user avatar
Dr. belisarius's user avatar
Dr. belisarius
  • Member for 12 years, 5 months
  • Last seen more than 7 years ago
550 votes
37 answers
132k views

What are the most common pitfalls awaiting new users?

103 votes
4 answers
13k views

How to peel the labels from marmalade jars using Mathematica?

51 votes
2 answers
11k views

Image Shadow Removal in Mathematica

41 votes
10 answers
2k views

Happy 2K prime question

37 votes
5 answers
1k views

Any ideas on how to use the Region` context?

34 votes
2 answers
1k views

Symbolic derivatives are being calculated numerically

29 votes
2 answers
1k views

Saving my code before cell evaluations: Insurance against front end hanging

26 votes
2 answers
1k views

Graphics`Mesh`FindIntersections[ ] fails to detect intersections

22 votes
1 answer
406 views

What does "EquationalLogic`FindCounterexample[]" do?

21 votes
1 answer
2k views

Using Evaluate and Evaluated -> True in Plot

20 votes
1 answer
609 views

What does "suitable for symbolic manipulation" in the documentation mean?

18 votes
1 answer
804 views

Inconsistent behavior of WhenEvent[ ]

18 votes
2 answers
1k views

Do[ ]s and Don't[ ]s when teaching Mathematica in undergraduate courses

17 votes
2 answers
578 views

Why doesn't Mathematica use uniform criteria for validating Options?

16 votes
2 answers
2k views

Visiting nodes in a tree bottom up

12 votes
1 answer
2k views

Managing Exclusions in Plot[ ]

11 votes
2 answers
361 views

From iterative to functional

9 votes
1 answer
954 views

Using more than one set of Locators in a Manipulate

9 votes
1 answer
93 views

What system functions use VertexWeights?

8 votes
1 answer
409 views

Error while exporting to Excel with named sheets

8 votes
6 answers
382 views

An expression for the "perimeter elements" of a matrix

8 votes
2 answers
264 views

Why does the name of a pattern affect the result of a transformation rule?

7 votes
4 answers
252 views

Performance: Collapsing repeated contiguous rows & cols from a matrix

7 votes
1 answer
553 views

Celebration: How to golf a marriage with a prefix free code

7 votes
1 answer
341 views

How to interactively transform an image (rotate / translate / etc) on a per-component basis?

6 votes
1 answer
85 views

ControlActive doesn't distinguish the active element in list-based controls

6 votes
2 answers
161 views

Terser way to get the intensity of one pixel

5 votes
0 answers
116 views

Using quantifiers with free indices as declarative conditions in equation solving

5 votes
2 answers
532 views

Combinatorica: Girth[] and FindCycle[] disagreement

4 votes
2 answers
456 views

How to get a country's official languages?