9.1.9  Separation of variables

The split command tries to factor an expression involving two variables into the product of two expressions, each of which depends on only one of the variables.

• split takes two arguments:
  • expr, an expression depending on two variables x and y.
  • [x,y], the list of these two variables.
• split(expr,[x,y]) returns a list [factor₁,factor₂], if such a list exists, where expr=factor₁·factor₂, factor₁ only depends on x and factor₂ only depends on y. If such a factorization does not exist, the list [0] is returned.

Examples

or: