The Stack Overflow podcast is back! Listen to an interview with our new CEO.
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Favorites infavorites:mine
infavorites:1234
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with Search options user 1553

Questions on manipulating complicated expressions and making them look simpler using Simplify, FullSimplify and Reduce.

0
votes
0answers
Consider I have a power series which is function of $x$. A part of this expression is bounded when $x->\infty$, some remainder is on the other hand divergent when $x$ goes to infinity. What is the si …
asked Mar 5 '15 by usumdelphini
3
votes
3answers
I know that this expression (2 (ArcCot[E^(-((I ϕ)/2)) r] + ArcCot[E^((I ϕ)/2) r]))/π is real, because is the sum of a real series, in particular: Assuming[{r > 1, -π < ϕ < π, ϕ ∈ Reals}, Sum …
asked May 5 '16 by usumdelphini
2
votes
1answer
Is there a way, or if not, how could one define a function which takes an equation in any form (for example as given by FullSimplify): $$(A+X_0) x+By=3x$$ and rearranges it in the more compact and t …
asked Mar 3 '15 by usumdelphini
1
vote
1answer
Suppose I have: f[r_, ϕ_] = C1 Cos[ϕ]r + C3 Sin[3 ϕ] r + C4 Sin[4 ϕ] r^4; How do I extract the coefficient of a chosen trigonometric term, let's say Cos[ϕ]?
asked Nov 7 '15 by usumdelphini