I Calculation of x from log equation

  • I
  • Thread starter Thread starter AligatorAmy
  • Start date Start date
  • Tags Tags
    Calculation Log
AligatorAmy
Messages
27
Reaction score
1
Hi

I have the following equation:
Log(x/y)=A*(e^z(-1))

I know values of y, A, z.
I need to calculate x from this equation.

I need to ‘extract’ x first therefore
Log(x)-Log(y)= A*(e^z(-1))
Log(x) = A*(e^z(-1)) +Log(y)
x=10^[ A*(e^z(-1)) +Log(y)]

I am not sure whether my formula modification is correct.
Please help.
Thanks.
 
Mathematics news on Phys.org
It looks correct to me, assuming the base of the ## Log ## function is 10.
 
Most of it is correct, but I am not sure of the line "x=10^[ A*(e^z(-1)) +Log(y)]". Using log10 is unusual in mathematics. Yes, I see that you do not write "ln(x/y)", but be sure to check what kind of logarithms you have.
 
It would be simpler for calculation if you used y instead of 10^log(y), i.e. x=y\times 10^{A\times e^{z(-1)}}
 
  • Like
Likes Charles Link
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Fermat's Last Theorem has long been one of the most famous mathematical problems, and is now one of the most famous theorems. It simply states that the equation $$ a^n+b^n=c^n $$ has no solutions with positive integers if ##n>2.## It was named after Pierre de Fermat (1607-1665). The problem itself stems from the book Arithmetica by Diophantus of Alexandria. It gained popularity because Fermat noted in his copy "Cubum autem in duos cubos, aut quadratoquadratum in duos quadratoquadratos, et...
Thread 'Imaginary Pythagorus'
I posted this in the Lame Math thread, but it's got me thinking. Is there any validity to this? Or is it really just a mathematical trick? Naively, I see that i2 + plus 12 does equal zero2. But does this have a meaning? I know one can treat the imaginary number line as just another axis like the reals, but does that mean this does represent a triangle in the complex plane with a hypotenuse of length zero? Ibix offered a rendering of the diagram using what I assume is matrix* notation...

Similar threads

Replies
3
Views
2K
Replies
44
Views
4K
Replies
2
Views
988
Replies
2
Views
13K
Replies
3
Views
2K
Replies
3
Views
2K
Replies
10
Views
2K
Back
Top