Difference between revisions of "File:2015arcDev.png"

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Deviation of the observed value of Russian rouble from the elliptic approximation Arc, versus time $x$.
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Value of rouble is measured in the USA cents.
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Time is measured in days since 2014.10.27.
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The experimental data are taken from sites
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https://www.mataf.net/en/currency/converter-USD-RUB
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(and are marked with blue dots) and from
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www.cbr.ru/scripts/XML_dynamic.asp?date_req1=01/01/2014&date_req2=01/05/2015&VAL_NM_RQ=R01235
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and are narked with black bars.
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The Arc approximation is function
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$\mathrm{Arc}(x)=0.01\sqrt{(a+x)(b−x)}~ ~$ $~$ with $~a=471~$ and $~b=123~$.
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The experimental data are loaded as arrays of pairs $X_n,F_n$ for $n=1..N$; the marks at the graphic are centred at points
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$y=F_n-\mathrm{Arc}(X_n)$
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==References==
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<references/>
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[[Category:Approximation]]
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[[Category:Arc]]
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[[Category:Inflation]]
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[[Category:Russia]]
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[[Category:Ruble]]
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[[Category:Rouble]]

Latest revision as of 08:26, 1 December 2018

Deviation of the observed value of Russian rouble from the elliptic approximation Arc, versus time $x$.

Value of rouble is measured in the USA cents.

Time is measured in days since 2014.10.27.

The experimental data are taken from sites

https://www.mataf.net/en/currency/converter-USD-RUB (and are marked with blue dots) and from

www.cbr.ru/scripts/XML_dynamic.asp?date_req1=01/01/2014&date_req2=01/05/2015&VAL_NM_RQ=R01235 and are narked with black bars.

The Arc approximation is function

$\mathrm{Arc}(x)=0.01\sqrt{(a+x)(b−x)}~ ~$ $~$ with $~a=471~$ and $~b=123~$.

The experimental data are loaded as arrays of pairs $X_n,F_n$ for $n=1..N$; the marks at the graphic are centred at points

$y=F_n-\mathrm{Arc}(X_n)$

References

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