15 questions linked to/from Block attributes of Equal
130k views

### Where can I find examples of good Mathematica programming practice?

I consider myself a pretty good Mathematica programmer, but I'm always looking out for ways to either improve my way of doing things in Mathematica, or to see if there's something nifty that I haven't ...
6k views

### What is a Mathematica packed array?

A simple sounding question with a few sub questions: What is the difference between unpacked vs packed array? Are packed arrays more space efficent, how much so? Are packed arrays more time ...
2k views

### Equating matrices (or higher order tensors) element-wise

Say I have two matrices (or, as in my case, higher order tensors) $A,B$, and I want to solve the equation $A=B$. To do so , I need a list of equations that equate entry-wise the elements of $A$ and $B$...
660 views

### How to delete Missing[“NotAvailable”] from list of rules? [duplicate]

Considering we have a list of rules: ...
277 views

### Built in function without Attributes Listable works as if it has Attributes Listable

Can Built-in function works as if it has Attributes Listable even if it doesn't have that ...
1k views

### Indeterminate expression 0^0 encountered

I'm new to Wolfram Mathematica so the the question may seem quite simple. I define the following function: ...
191 views

### GridBox/packed array behaviour

I have never used low-level formating functions, so this problem might have a simple solution. I'm currently pulling my hair out trying to solve it, however. Consider the following example: ...
477 views

### How can I use Max[] in a function that is passed a list not find the max of the list

For most functions in Mathematica, passing them a list will call the function on each element of the list. For example: ...
207 views

### Evaluation inside Inactivate

The documentation for Inactivate makes the function sound really powerful because it gives granular control over which kind of expressions specifically not to ...
2k views

### Extract common factor from vector or matrix

I can't believe this hasn't been asked before but I can't find anything. Is there a way to convince Simplify or FullSimplify to ...
135 views

### Cannot Block Plus

It is customary to use the following idiom to partially evaluate something inside a held expression: ...
206 views

### How to understand the difference between Sqrt and Log after ClearAll them

I came across this post, here I change the last line of the code Unprotect[Sqrt]; Sqrt[x_] = "blahblah"; Protect[Sqrt]; Sqrt[2] "blahblah" ...
175 views

### Strange Behavior when making Equal Listable in Pick

While trying to make this problem more efficient I tried different methods and dabbled with making Greater and Equal ...