Questions tagged [logarithmic-scale]

Questions on applying common nonlinear scalings to functions or data--useful for making sense of data which varies over a large range.

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272 questions
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BarChart with ScalingFunctions -> "Log", Fixed axis

I want to make an animated BarChart. In this I want to plot different tables which range from $10^{-60}$ to $1$. For example: {0.1,0.2,10^-3,10^-16,0.01,10^-20} and the next data set goes to: {0.11,0.19,10^-2,10^-12,0.0001,10^-10} However, I…
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How to determine if a number is an integer power?

How can I do simple tests like determining if an integer is a power of 2? Mathematically, the result below should be True, and I understand why it doesn't work on MMa, but how do I do this test properly so I'll get a correct…
Jerry Guern
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How to make the $ y $-axis of a spectrogram logarithmic?

Is there a way to make the $ y $-axis for a spectrogram logarithmic? I couldn't find an option for it and was doing it explicitly. Consider for e.g. the spectrogram of this audio: which after log adjustment would look like
lineage
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LogLinearPlot problem with plotrange

i have this equation y= (5.41*10^-15 E^(-148/T))/T^(3/2) + ( 2.00122*10^-10 E^(-(( 53.124 (1 + (59.357 T - 1.0404 T^2 + 0.0091653 T^3)/( 1000 + 201.65 T + 2.7621 T^2 + 0.00098305 T^3))^(1/3))/T^( 1/3))))/( T^(2/3) (1 + (59.357 T - 1.0404…
user68857
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log log contourplot

I want to plot my function on the log-log scale. Why this code doesn't work for me? I write the following one, but nothing happens. ContourPlot[ Sin[3 x]+Cos[3 y]==1/2, {x,.01 Pi,3 Pi}, {y,.01 Pi,3 Pi}, ScalingFunctions->{"Log","Log"}]
Mehrdad
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LogLogPlot doesn't give log-log scale in both axises

I have a function called $sol[x]$. I want to plot it in LogLog SCALE. I write: LogLogPlot[sol[x], {x, 1, 500}, PlotRange -> Full] but y-axis of the output in not in logarithmic scale. What should I do?
Wat Watson
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How to prove that $\log a = \log b \Rightarrow a=b$ without assuming that its true?

Why is $\log a = \log b \Rightarrow a=b$ true?
Will
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