Take a look here

This is extremely weird as both functions are algebraically the same. This kind of thing occurs very frequently but it still leaves me puzzled.

What do you think causes the difference when graphing them?

Take a look here

This is extremely weird as both functions are algebraically the same. This kind of thing occurs very frequently but it still leaves me puzzled.

What do you think causes the difference when graphing them?

No vote yet

1 vote

×

Problem Loading...

Note Loading...

Set Loading...

## Comments

Sort by:

TopNewestIn the first place, Sin(xy) is supposed to be a surface, so the green graph sort of looks like the way it's supposed to be (however badly drawn). In theory, both functions are the same, but apparently your graphing calculator has a hangup with the first one. If you use a good math software like Mathematica, there is no difference. Check this out

SinXY

Log in to reply

– Julian Poon · 1 year, 11 months ago

I dont really understand why it is a surface though. \(\sin{(xy)}=0\) has only \(2\) variables.Log in to reply

Yeah, I get the same graph as the green one, with both equations you've posted. For whatever reason, your graphing calculator has a hangup with the series expression. Can you give me other examples of this "weird behavior that keeps frequently", and maybe we can see what your calculator is doing? – Michael Mendrin · 1 year, 11 months ago

Log in to reply

this – Julian Poon · 1 year, 11 months ago

Other examples includeLog in to reply

– Michael Mendrin · 1 year, 11 months ago

Well, once again, Mathematica handles this correctly, and shows part of this function \(y={ x }^{ 6 }\) in both cases. I think your calculator is just not up to this job. I don't think the reason why it shows the line \(x=6\) is related to the problems it's having with the first example you gave.Log in to reply

May be the functions are non identical.

Looks at these

f(x) = \(ln x^{2}\)

g(x) = \(2lnx\) – Krishna Sharma · 1 year, 11 months ago

Log in to reply

Nice example by the way :D. – Julian Poon · 1 year, 11 months ago

Log in to reply