1,510 reputation
1520
bio website
location
age
visits member for 2 years
seen 20 hours ago

Sep
16
revised Is there a triangle like this?
added 260 characters in body
Sep
16
revised Is there a triangle like this?
deleted 4 characters in body
Sep
16
answered Is there a triangle like this?
Sep
15
accepted Is there a triangle like this?
Sep
14
asked Is there a triangle like this?
Sep
9
awarded  Yearling
Sep
8
accepted How to find the numbers $a$, $b$, $c$, $d$ of the function?
Sep
8
asked How to find the numbers $a$, $b$, $c$, $d$ of the function?
Aug
8
awarded  Nice Question
Jul
24
accepted $1 - \sqrt{5}$ $\in$ $\mathbf{R}$?
Jul
23
asked $1 - \sqrt{5}$ $\in$ $\mathbf{R}$?
Jul
20
comment How can I find all values of $m$ such that my cubic equation has three different positive solutions?
If I want to the given equation has two negative solutions and one positive solution, how to solve?
Jul
20
revised How can I find all values of $m$ such that my cubic equation has three different positive solutions?
edited title
Jul
19
accepted How can I find all values of $m$ such that my cubic equation has three different positive solutions?
Jul
18
revised How can I find all values of $m$ such that my cubic equation has three different positive solutions?
added 260 characters in body
Jul
18
asked How can I find all values of $m$ such that my cubic equation has three different positive solutions?
Jun
24
comment How to choose three points on the circle so that the triangle is not a right triangle?
let us continue this discussion in chat
Jun
24
comment How to choose three points on the circle so that the triangle is not a right triangle?
I want to copy the result to LaTeX. How to convert the output array to list?
Jun
24
comment How to choose three points on the circle so that the triangle is not a right triangle?
Yes. I did so. Thank you.
Jun
24
comment How to choose three points on the circle so that the triangle is not a right triangle?
Ok. res = Pick[ ss, (FreeQ[#, [Pi]/2] &) /@ ({VectorAngle[#2 - #1, #3 - #1], VectorAngle[#1 - #2, #3 - #2], VectorAngle[#1 - #3, #2 - #3]} & @@@ ss)]