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# Arcsin

12 Threads found on edaboard.com: Arcsin

## Newton raphson method for two variables equation

C=(x0-xf)/sin(xf+theta) and theta=arcsin{(x0-xf)/C}-xf So you assign two initial value for these variables then find them by inserting the value that you have already found in the equation before. It should normally work if it converges.

## Absolute sine function calculation

So arcsin (xV/12V) is all i have... It is not too clear what exactly do you need, but assuming that you´re searching for some low overhead computational method that calculate the trigonometric function above, probably something like this could fulfill:

## How to use Pi number in component parameter ?

... if I can use a value with more accuracy whitout put in by hand like: 3,141592653589793 Sometimes I use an inverse trigonometric function like π = 2*arcsin 1 = 2*arccos 0 = 4*arctan 1 (in the Wiki, scroll down to Special values in trigon

## [Moved] Low cost AC line voltage measurement

1) Do the math. If you have a maximum allowable error of 2%, that means you have to sample fast enough so that you will always get a sample within 2% of the peak. For a (presumably) 50Hz sine wave: arcsin(.98)= 78.5 degrees 360/78.5=4.6 Thus, you will need to sample at least 5 times per cycle, or every 4 milliseconds. 2) Relay? what relay? Op

Formally, if x = sin(t), then t = arcsin(x). If you look at the graph, you notice that the function be only inversed with restrictions. But the function exists, you can e.g. use your pocket calculator to get the result.

## How to take Phase from PLL output in Matlab Simulink

We know known the PLL output is Sin(Φout) where Φout=ωout*t+Θ(t),for stability and calculation of the PLL loop I have to find transfer function of Φout(s)/ Φin(s). The Problem is how can I Take Φout from Sin( Φout) in Matlab simulink? Iam looking for something like arcsin() function but as arcsin lies

## can 89s52 perform trignometric function?

If high accuracy is an objective, you should code your own library function using power series, see List of mathematical series - Wikipedia, the free encyclopedia Here's the example for inverted sine

## using xilinx cordic core to compute ARCSIN

Hi, does anyone have any advice or experience with computing the arcsin of an angle using VHDL or the cordic core?

## any good method to design notch filter?

sin^-1 means arcsin not 1/sin

## What is CORDIC and how does it work?

I have reviwed some topics in the form and I see that in order to implement SIN/COS/arcsin..... there are two ways: 1. LUT/ROM 2. CORDIC algorithm. so what is CORDIC and how it does work? Is it an advanced LUT or what? whats is the advantages/dis of it? why it is prefered?

## arcsin() implementation by FPGA

hi, Can any one answer my following questions: 1- How can I find FPGA implementation of arcsin() and do you know any references? 2- In MATLAB, how MathWork implement the arcsin() function do you know its algorithm? regards

## Derivation formula for Lissajous method

It is actually the arcsin of the ratio of the vertical and horizontal displacements. The derivation is straightforward. The Lissajous curve is ploting the first waveform (x=V1sin wt) versus the second waveform (y=V2sin wt + phi). So the steps would be to get an expression for the curve, and then the two zero crossings would be the displacement.