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Logarithmic UISlider
Category : Development Tools & Services

Are there any preferred methods for having a UISliders values change logarithmically, rather than linearly? So that, for example, the value changes from 0 to 25 over the first half of the slider, and 25 to 100 over the second half.


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How to Calculate Logarithmic Mean
Category : Hobbies, Games & Toys
Almost everyone is familiar with the mathematical concept of a mean, even if they know it by its more common name, the average. By summing the terms in a series and dividing the resulting number, you can obtain the mean of a given group of numbers. A logarithmic mean is very much like this. Often used when calculating temperature differences, a logarithmic mean is obtained in much the same way as

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How to Do a Logarithmic Graph
Category : Hobbies, Games & Toys
Plotting a logarithmic graph is similar to graphing any other mathematical function. A logarithmic point consists of both an independent variable, which is the inputted value, and a dependent variable, which is the result of the log. Knowing the shape of the graph of the general log function allows you to perform transformations on it such as vertical and horizontal shifts, shrinks and stretches a

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How to Make a Logarithmic Graph
Category : Education
Logarithmic functions are the inverse of exponential functions. Thus, making a logarithmic graph entails performing the same steps that one would use to make an exponential graph. Unfortunately, both exponential and logarithmic functions do not offer a magic formula that can be used to plot points. The only way to make a logarithmic graph is by using arbitrary values of "x" to solve for the logari

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How to Calculate Logarithmic Decibels
Category : Hobbies, Games & Toys
Decibels, denoted as "dB," are units measuring the intensity of sound. This unit is commonly used in acoustics to quantify sound levels. Decibels are the logarithm of the ratio of the sound (I) to the threshold of hearing (Io); decibels= 10 x log10 (I/Io). The standard threshold of hearing is 10^-12 watts / square meter. Use a calculator to compute decibels.Difficulty:EasyInstructions Things Yo

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How to Use the TI-83 to Graph Logarithmic Function
Category : Education
Logarithms are one of the more difficult types of functions to graph by hand, making a graphing calculator an appealing option. However, many logarithmic functions are also tricky to graph on the TI-83. This stems from the fact that the calculator can only calculate logs with two kind of bases, base 10 and base e (expressed as ln). Logs often have other bases (e.g., 7, 5 or 2). Some of these logs,

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How to prove logarithmic complexity
Category : Programming Languages
for (int i = 1; i < N; i *= 2) { ... }

Things like that are the signatures of logarithmic complexity.


But how get log(N)?


Could you give mathematical evidence?


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How to Calculate Logarithmic Expression
Category : Education
Logarithms may be thought of as the opposites of exponents, just like subtraction is the opposite of addition. An exponent may be described as a number raised to a power. Calculating or solving a logarithmic equation requires a basic understanding of arithmetic and algebra. One way to think of logarithms, where ^ means "raised to," is that y = b^x is the equivalent of log (base b)(y) = x.Difficul

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Logarithmic plotting of points
Category : Development Tools & Services

I was wondering if give a number of 2D points, how do calculate where to draw a point on a screen in a logarithmic y scale?


I tried to just take the logarithm of all the y-values of points and than plot them 'normally' (plot point [x, log(y)] => on height: height*log(y)/log(max)). But this approach causes problems for y-values under 1. So this makes me wonder if my method in general


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Logarithmic series of numbers from 1 to MAX
Category : Programming Languages

I'd like to calculate a logarithmic range of numbers from 1 to MAX, with the approximate total count of numbers being TOTAL.


A non-logarithmic example might be:


$max = 3600;
$total = 100;
$range = array();
for($i = $total; $i > 0; $i--){
$range[] = round($max/$i);
}

This creates a roughly equally distributed range ho


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