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Page Revision: 2011/07/17 00:56


roots function is used to numerically find roots for system of nonlinear equations. It might have two or three arguments.

roots('1:vector','2:vector')

roots('1:vector','2:vector','3:vector')

The system of functions is given in 1:vector. Returns the value of "2:vector" to make the set of functions "1:vector" equal to zeros. The third argument "3:vector" is the vector of guess values. It could be used to find a root of a single equation as well.

Here is an example explaining how to use roots() for a single equation and for a system of equations as well.

roots()

Note: Pay attention that 1:vector is a user defined function returning vector in the given variables, and 2:vector is a vector of symbolic variables (must not be given numerical values). When using roots() check that variables for which the roots is searching were not defined before with numerical values.

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