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Darn. Oh well. I will keep on searching. Thanks for looking!

Darn.

10 would be {1, 3, 7, 9}. However, since 10 is not prime, theres no need for it

Any ideas on how to get g for a big p?

Hi bobbym. Its been a long time

totient(x) = {1,2, 3,...,etc.}, for some number (ignore prime p for now)

im looking for integer g (that is in totient(x) ) such that:

the set of {for 1 <= i < x: g ^ i mod x (removing all duplicates)} will equal the totient of x

since x = p = prime, totient(p) = {1,2, ... p-1}

since p is big, testing all those values will take forever

**calccrypto**- Replies: 9

Is there some way to find a generator for a large prime number without checking each number individually?

no i meant instead of

f(x,y,x) = scalar value like xyz

the equation is

f(x,y,z) = vector, like (xy,yz,xz)

but i think i got it

**calccrypto**- Replies: 1

how do you find the tangent plane of an equation like r(u,v) = (e^u, e^v,uv) at (1,1,0)? and i forget: would i use (u,v) = (0,0), or would i use (1,1,0) for the point? if i do use (1,1,0), what do i take the last derivative (d(uv)/d?) in respect to?

what happens if f returns a vector?

No wonder! I forgot to square the z component.

oh.. thats what you meant in that previous post. wow. i fail. shoot me

i dont know how to continue at all

i just replaced the components of r for (x,y,z) and multiplied.

and yep. I forgot to put in the limits, which are 0<= t <= 1 like you guessed

Hi bobbym! I got this question:

C modeled by r(t) = (t, 3t^2, 6t^3)

and

f(x,y,z) = x y z^2

compute the line integral of f along C as modeled by r(t)

so far, i have only gotten r'(t) = (1, 6t, 18t^2) and f(t) = 18t^6. I dont know how to continue. all i know is the answer is 864/5

**calccrypto**- Replies: 16

How do you change variables properly to get the line integral of any f(x,y,z) on any curve C modeled by r(t)??? Im so lost!

**calccrypto**- Replies: 0

How do you get the limits of integration for cylindrical and spherical coordinates if the restrictions of the graphs are equations? how do you even differentiate between when either one should be used? Im getting problems like

sometimes im not even given the equation. Sometimes I am, such as

Im supposed to use the jacobian to change this equation around and get some answer

yeah. thanks for asking

Ok. When/If i find out, i'll post the answer here

Thanks for the advice bobbym. i guess for the moment, i'll live with that

Thanks!

Hi bobbym!

Now... what does fxy(x,y) mean in terms of acceleration? i cant seem to imagine it

**calccrypto**- Replies: 12

if i have some function f(x,y), what is fxx(x,y) (i dont mean just a deriv(deriv(f(x,y))) explanation)? is it still "acceleration", like physics projectile motion <-> acceleration, or is there some other geometric/physical thing that is associated with explaining what fxx is?

arggg...

yeah, but something is just not working