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  • 9 votes cast
Nov
26
comment Quadratic Equations - One rational solution?
Thanks @Integrator, forgive my slowness of accepting your answer, I don't check in here every day.
Nov
24
comment Quadratic Equations - One rational solution?
@Integrator, that's what happens to a guy when he hasn't done any math in a few years and has to help out a friends son with his homework :) Edit your answer and add that bit and I'll mark it correct.
Nov
19
comment Quadratic Equations - One rational solution?
@Integrator, yes I am quite aware of how the stack exchange family of sites work. I almost accepted your answer but then realised you only addresses what a rational solution, not what it means to only have "one rational solution". (Which I now understand is having a rational solution where the discriminant evaluates to 0, meaning the parabola will not cross the x axis twice)
Nov
16
comment Quadratic Equations - One rational solution?
@columbus8myhw I do now, because of the answers below.
Nov
16
comment Quadratic Equations - One rational solution?
I am a bit of a beginner, would it be possible to elaborate on your answer in layman's terms
Dec
29
comment Simple Formula for Curve of DJ Crossfader volume : Dipped
That's lovely stuff Keith
Nov
12
comment Finding roots of polynomials, negative square root
Thanks Alex, your answer leads to a clear understanding of why the discriminant is negative, as well as why the method fails, which is actually more important to understanding the problem than the mechanics of working out the roots on the complex plane. Also a graph always helps.
Nov
11
comment Finding roots of polynomials, negative square root
so does that mean there is no general solution for solving polynomials, without straying into the complex plane?
Nov
11
comment Finding roots of polynomials, negative square root
yep tried reloading a few times, the explanation cuts off "there is one solution (the repeated root) and if $b^2-4ac" (so you can see part of the markup is probably at fault as i assume this is mid sentence) - c'mon admins help us out!
Nov
11
comment Finding roots of polynomials, negative square root
your explanation cuts off (i think the markup might be at fault), could you edit it so i can read the rest of it? It's good so far.
Nov
10
comment What are the steps to perform this algebraic simplification
excellent work, thank you,+1 for the double solution, I like the alternative solution using the negative indices rule.
Sep
14
comment Simple Formula for Curve of DJ Crossfader volume : Dipped
could you explain how to do this in the range 0..1?
Sep
14
comment Simple Formula for Curve of DJ Crossfader volume : Dipped
1-dipped worked like a charm. I would still like to see your ideas on fade/cut/cut however. thanks.