Formula:KLS:01.16:05
Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle {\displaystyle \delta^2 f(x)=f(x+\iunit)-f(x)-f(x)+f(x-\iunit)=f(x+\iunit)-2f(x)+f(x-\iunit) }}
Proof
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Symbols List
Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle {\displaystyle \mathrm{i}}}
: imaginary unit : http://dlmf.nist.gov/1.9.i
Bibliography
Equation in Section 1.16 of KLS.
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