Thread: can´t solve it this simple equation

Hello
I have a equation with y as dependent variable but want instead x as the dependent variable. I can´t solve it can you?

y=(((10^2.806*x^-0.444*11.08^0.138*4202463^0.235*5508000^0.4)*1000)/0.8515)/1000000

Thanks guys for all the help! but if I simplify the equation to just
y=10^2.806*x^-0.444*b^0.138*c^0.235*d^0.4
what would the equation then be with x as the dependent?

x=................................................ .................................................. ..

Originally Posted by gruvan

Hello
I have a equation with y as dependent variable but want instead x as the dependent variable. I can´t solve it can you?

y=(((10^2.806*x^-0.444*11.08^0.138*4202463^0.235*5508000^0.4)*1000)/0.8515)/1000000



x=................................................ .................................................. ..

According to what you have written, this is


There is a way to solve for x but as far any practical calculation is concerned,

is so large that

to some 1000 decimal places.

So effectively y is a constant function for any reasonable scale factor.

Edit: I suppose for completeness I should say that this equation is basically just

so the solution would be






-Dan

Originally Posted by topsquark

According to what you have written, this is


There is a way to solve for x but as far any practical calculation is concerned,

is so large that

to some 1000 decimal places.

So effectively y is a constant function for any reasonable scale factor.

Edit: I suppose for completeness I should say that this equation is basically just

so the solution would be






-Dan

By the usual rules of precedence ^ take precedence over * so this would be
(under this interpretation, which I would not trust. It really does need brackets when written in plain ASCII):



Either way the original poster needs to learn how cancell off some of the zeros and break the calculation down into manageble chunks and not to try to calculate the value of this monster as it is (else they are just taking the p**s)

for all the good it will do:

x= 2.38221e-010 y^{-2.25225}

RonL

Thanks guys for all the help! but if I simplify the equation to just
y=10^2.806*x^-0.444*b^0.138*c^0.235*d^0.4
what would the equation then be with x as the dependent?
x=................................................ ...........................

Originally Posted by gruvan

Thanks guys for all the help! but if I simplify the equation to just
y=10^2.806*x^-0.444*b^0.138*c^0.235*d^0.4
what would the equation then be with x as the dependent?
x=................................................ ...........................

Well everything but the x term is just a constant. So your equation is of the form




-Dan