11.7.1 Top new questions this week

11.7.1.1 Does Mathematica have weaker symbolic computation capabilities compared to Maple?
11.7.1.2 Tabular shifts dates by one day
11.7.1.3 Simplifying a trigonometric expression involving ArcTan
11.7.1.4 Strong dynamic chromostereopsis illusion
11.7.1.5 DSolve Produces Invalid Solution of Fourth Order ODE
11.7.1.6 ComplexExpand cannot expand Indexed objects?
11.7.1.7 Complicated nested function construction with two lists of arguments
11.7.1.1 Does Mathematica have weaker symbolic computation capabilities compared to Maple?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311157

I've been using Mathematica for a while now, and although I think Mathematica is excellent, there are many areas where it falls short compared to Maple when it comes to symbolic computation (though it'... 
[symbolic] [maple] [performance]
 
asked by Ethan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=106658 Score of 14
11.7.1.2 Tabular shifts dates by one day

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311168

Why is  Tabular  shifting the date by one day (as documented by the snapshot)? 
... 
[bugs] [date-and-time] [tabular] [version-14.2]
 
asked by Pavel https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=40643 Score of 11
answered by Domen https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=75628 Score of 7
11.7.1.3 Simplifying a trigonometric expression involving ArcTan

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311127

I have the following formula 
 expr = 2 ArcCsc[r] + 7 ArcTan[Sqrt[-1 + r^2]] + 10 ArcTan[r - Sqrt[-1 + r^2]] 
 
I have seen plotting it or also assigning different ... 
[simplifying-expressions] [trigonometry]
 
asked by VDF https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=67594 Score of 9
answered by infinitezero https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=31036 Score of 8
11.7.1.4 Strong dynamic chromostereopsis illusion

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311180

A captivating  chromostereopsis illusion by famous Japanese experimental psychologist Akiyoshi Kitaoka - here is HiGH quality original. I do not have an idea yet how to go about it. I think the ... 
[graphics] [image-processing] [image] [generative-art]
 
asked by Vitaliy Kaurov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=13 Score of 8
answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 12
11.7.1.5 DSolve Produces Invalid Solution of Fourth Order ODE

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311118

I am trying to solve the following differential equation: 
$$ (1-x^2)^2\frac{d^4f}{dx^4} + a f(x) = 0,$$ 
where $a \neq 0$ and $|x| \leq 1$. 
When I run DSolve, Mathematica gives me this monster of a ... 
[differential-equations]
 
asked by Klein Four https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=106591 Score of 8
answered by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 6
11.7.1.6 ComplexExpand cannot expand Indexed objects?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311131

It seems that  ComplexExpand  cannot expand  Indexed  objects. 
Mini example: 
... 
[simplifying-expressions] [symbolic] [complex] [vector]
 
asked by Lacia https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86893 Score of 6
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 8
11.7.1.7 Complicated nested function construction with two lists of arguments

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=311209

Given arguments  arg1  and  arg2  and function  f  I want the output to be ... 
[function-construction] [nested-function]
 
asked by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 5
answered by Domen https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=75628 Score of 6