minthao_2011

994 reputation

bio	website
	location
	age
visits	member for	9 months
	seen	13 hours ago
stats	profile views	325

	994 reputation	bio	website		visits	member for	9 months
19 badges		location			seen	13 hours ago

summary answers questions tags badges favorites bounties reputation activity

60 Comments

suggestions reviews revisions comments badges posts accepts all

May 29	comment	How to get the correct answer when solve this equation? This work ab = SquaredEuclideanDistance[a, b]; bc = SquaredEuclideanDistance[b, c]; ac = SquaredEuclideanDistance[a, c]; Solve[{ab == bc, bc == ac, ac == ab, m > 0}, m, Reals]
May 19	comment	Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions? I have just edited $[-10,10]$. I want only integer solutionS. I think, $x$ depend on parameters.
May 17	comment	Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions? My code is $[-10,10]$, and ofcourse, it can $[-10,10]$; $k$ is parameter and $x$ is a unknown.
May 6	comment	How to convert the symbol $d$ in Integrate into $\mathrm{d}$? I don't understand, my computer doesn't run.
Apr 28	comment	How to find the minimum of this constrained expression? @belisarius I did so. Thank you.
Apr 28	comment	How to find the minimum of this constrained expression? My problem is Minimize[{1/2 (x^2 y^2 + y^2 z^2 + z^2 x^2) + 96/(x + y + z + 1), x >= 0 && y >= 0 && z >= 0 && x^2 + y^2 + z^2 == 5}, {x, y, z}]. But I typed wrong.
Apr 28	comment	How to find the minimum of this constrained expression? @belisarius I am a teacher. I only want check my problem.
Apr 28	comment	How to find the minimum of this constrained expression? I am sory. Thank you very much.
Apr 28	comment	How to find the minimum of this constrained expression? How about exact answer?
Mar 21	comment	How can I get the right hand side of a delayed expression? You can see at mathematica.stackexchange.com/questions/20236/…
Feb 26	comment	How to substitute $x$ in a expression $f(x)$ but not calculate the value of the $f(x)$ at the point $x$? Thank you very much.
Feb 25	comment	How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$? Thank you very much.
Feb 25	comment	How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$? Your answer depend on the number 25.
Feb 25	comment	How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$? I don't understand your answer. The right hand side must be 25. Your answer is 11.
Feb 23	comment	How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$? @ArtesThank you very much
Feb 23	comment	How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$? I want the equation has my form exactly, not $-25 + (-1 + x)^2 + (-2 + y)^2 + (-3 + z)^2$.
Jan 28	comment	How can I eliminate equivalent equations from a list? please write for me DeleteDuplicates in your answer. I can't write. Thank you.
Jan 27	comment	How can I eliminate equivalent equations from a list? Thank Artes very much.
Jan 16	comment	What's the difference between the following two codes? You try Solve[{( m x + y - 7 z)^2 == Cos[[Pi]/3]^2(x^2 + y^2 + z^2)(m^2 + 1^2 + 7^2), -10 <= m <= 10, 0 <= x <= 10, 0 <= y <= 10, 0 <= z <= 10}, {m, x, y, z}, Integers] The number of solutions are more your code.
Jan 16	comment	What's the difference between the following two codes? The first I typed Cos[Pi/3] and the second Cos[Pi/6]. If I change your code is Cos[Pi/6], I only get three solutions.