Table comparing the names of certain functions in the SBML text-string formula syntax and MathML. The left column shows the names of functions recognized by SBML_parseFormula(); the right column shows their equivalent function names in MathML 2.0, used in SBML Level 2.

Text string formula functions	MathML equivalents in SBML Level 2
acos	arccos
asin	arcsin
atan	arctan
ceil	ceiling
log	ln
log10(x)	log(10, x)
pow(x, y)	power(x, y)
sqr(x)	power(x, 2)
sqrt(x)	root(2, x)