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visits member for 1 year, 11 months
seen 3 hours ago

Jun
23
asked How to choose three points on the circle so that the triangle is not a right triangle?
Jun
19
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
added 295 characters in body
May
29
accepted How to get the correct answer when solve this equation?
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
29
revised How to get the correct answer when solve this equation?
edited body
May
29
asked How to get the correct answer when solve this equation?
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
19
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
edited body
May
19
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
added 411 characters in body
May
17
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
edited body
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
17
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
added 3 characters in body; edited title
May
17
revised Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
added 291 characters in body; edited title
May
17
asked Find all the integer numbers $a$, $b$, $c$, $d$, $e$, $f$, $k$ to this equation have three integer different solutions?
May
6
accepted How to convert the symbol $d$ in Integrate into $\mathrm{d}$?
May
6
comment How to convert the symbol $d$ in Integrate into $\mathrm{d}$?
I don't understand, my computer doesn't run.
May
6
asked How to convert the symbol $d$ in Integrate into $\mathrm{d}$?
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.