Editing Equation solving (section)

===Differential equations===
There is a vast body of methods for solving various kinds of [[differential equation]]s, both [[Numerical mathematics|numerically]] and [[Calculus|analytically]]. A particular class of problem that can be considered to belong here is [[integral|integration]], and the analytic methods for solving this kind of problems are now called [[symbolic integration]].{{citation needed|date=July 2019}} Solutions of differential equations can be ''[[implicit function|implicit]]'' or ''explicit''.<ref name="Zill2012">{{cite book|author=Dennis G. Zill|title=A First Course in Differential Equations with Modeling Applications|url=https://books.google.com/books?id=pasKAAAAQBAJ&q=solution|date=15 March 2012|publisher=Cengage Learning|isbn=978-1-285-40110-2}}</ref>