MHB I made 2 equations but can they become 1

  • Thread starter Thread starter DRMSquared
  • Start date Start date
DRMSquared
Messages
3
Reaction score
0
So a little background then to the point, I needed to get a cnc machine to do something it don’t want to do, so I came up with 2 equations to lie to the machine to get it to do an operation correctly. It is a radius equation that finds the center point of a radius if it is not a full radius. Can these be combined to make one?

1st: Asin(chord/radius)=x
2nd: radius[sin(x/2)]=y

Y is the input for the machine, it’s the important answer.
 
Mathematics news on Phys.org
Welcome, DRMSquared! (Wave)

DRMSquared said:
Can these be combined to make one?

1st: Asin(chord/radius)=x
2nd: radius[sin(x/2)]=y

Y is the input for the machine, it’s the important answer.
In the first equation, does Asin mean the Arcsine, or does it mean $A$ times sin where $A$ is some constant?
 
Euge said:
Welcome, DRMSquared! (Wave)

In the first equation, does Asin mean the Arcsine, or does it mean $A$ times sin where $A$ is some constant?

It would be sin-1 so I’m guessing arcsine
 
Ok. For simplicity, let $C = \text{chord}$ and $r = \text{radius}$. Equation 1 is then $x = \arcsin(C/r)$. Plugging in the expression of $x$ into Equation 2 yields $$y = r\sin(.5\arcsin(C/r))$$
 
Euge said:
Ok. For simplicity, let $C = \text{chord}$ and $r = \text{radius}$. Equation 1 is then $x = \arcsin(C/r)$. Plugging in the expression of $x$ into Equation 2 yields $$y = r\sin(.5\arcsin(C/r))$$

You my friend are awesome, thank you so much, now I can easily plug this into my hp48g and have an easier and quicker time doing this problem.
 
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...
I'm interested to know whether the equation $$1 = 2 - \frac{1}{2 - \frac{1}{2 - \cdots}}$$ is true or not. It can be shown easily that if the continued fraction converges, it cannot converge to anything else than 1. It seems that if the continued fraction converges, the convergence is very slow. The apparent slowness of the convergence makes it difficult to estimate the presence of true convergence numerically. At the moment I don't know whether this converges or not.

Similar threads

Back
Top