User:Person9876543210123456789/sandbox

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sandbox

${ \time 4/4 \clef bass c4 a e f g g g gis bes1 }$

${\ce {2H_2O <=> H_3O+ + OH-}}$


x	y	x+y	xy	x\|\|y
	12	56	528	4412
8		10	16	82
			115	523

if x == 0:
    print "asldfkjas;dlfkjas;dfkjas;dfkjasd;fklajsd;fkajds;kj;k;;"
else:
    print "alsdfjasd;lfkjasd;lfkjdsa;fkajds;flkajdsl;fkadjsf;lakdsjf;k"

Random math formulas

${\frac {1}{1-x}}=1+x+x^{2}+x^{3}+x^{4}+\cdots =\sum _{k=0}^{\infty }x^{k},\,\,\vert x\vert <1$

$\int _{0}^{\infty }e^{-2x}\,\mathrm {d} x=\lim _{b\to \infty }\int _{0}^{b}e^{-2x}\,\mathrm {d} x={\frac {1}{2}}$

$x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}$

$\int {\frac {1}{u}}\,\mathrm {d} u=\ln \vert u\vert +C$

${\frac {\mathrm {d} }{\mathrm {d} x}}[\sec ^{-1}x]={\frac {1}{\vert x\vert {\sqrt {x^{2}-1}}}}$

$\lim _{x\to 0}{\frac {\sin x}{x}}=1$