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Display information for equation id:math.237599.24 on revision:237599

* Page found: Selection rule (eq math.237599.24)

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Occurrences on the following pages:

Hash: ff4ce7009810b898ff4fd93723d7d722

TeX (original user input):

\pi_{\mathrm{f}} = -\pi_{\mathrm{i}}\,

TeX (checked):

\pi _{\mathrm {f} }=-\pi _{\mathrm {i} }\,

LaTeXML (experimental; uses MathML) rendering

MathML (2.103 KB / 573 B) :

π f = - π i subscript 𝜋 f subscript 𝜋 i {\displaystyle\pi_{{{\mathrm{f}}}}=-\pi_{{{\mathrm{i}}}}\,}
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SVG (3.207 KB / 1.33 KB) :

pi Subscript normal f Baseline equals minus pi Subscript normal i

MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools) rendering

MathML (0 B / 8 B) :

SVG image empty. Force Re-Rendering

SVG (0 B / 8 B) :


PNG (0 B / 8 B) :


Translations to Computer Algebra Systems

Translation to Maple

In Maple: pi[f]= - pi[i]

Information about the conversion process:

I: You use a typical letter for a constant [the imaginary unit == the principal square root of -1].

We keep it like it is! But you should know that Maple uses I for this constant.

If you want to translate it as a constant, use the corresponding DLMF macro \iunit


\pi: Could be the ratio of a circle's circumference to its diameter == Archimedes' constant.

But it is also a Greek letter. Be aware, that this program translated the letter as a normal Greek letter and not as a constant!
Use the DLMF-Macro \cpi to translate \pi as a constant.


i: the imaginary unit == the principal square root of -1 was translated to: i


Translation to Mathematica

In Mathematica: Subscript[\[Pi], f]= - Subscript[\[Pi], i]

Information about the conversion process:

I: You use a typical letter for a constant [the imaginary unit == the principal square root of -1].

We keep it like it is! But you should know that Mathematica uses I for this constant.

If you want to translate it as a constant, use the corresponding DLMF macro \iunit


\pi: Could be the ratio of a circle's circumference to its diameter == Archimedes' constant.

But it is also a Greek letter. Be aware, that this program translated the letter as a normal Greek letter and not as a constant!
Use the DLMF-Macro \cpi to translate \pi as a constant.


i: the imaginary unit == the principal square root of -1 was translated to: i


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