DDE-BIFTOOL v. 1.00

Version 1.00 of DDE-BIFTOOL has two known bugs and encounters some small problems with different versions of Matlab.

• Bug 1: So-called pure delay equations (with no dependency on the present) are wrongly evaluated as being ordinary differential equations. Consequently root approximations are completely wrong. Root corrections might diverge or converge (by change) to part of the actual spectrum.
• Bug 2: The conversion of a periodic solution to a Hopf point using p_tohopf produces an error rather than a result.
• Problem 1: Some versions of Matlab require that each function call present in a routine refers to an existing function file even if, during runtime, this call is never executed. This problem can occur with the routine sys_cond.m which is not used (and therefore not given) in the give demonstration demo1.
• Problem 2: The concatenation of an empty string with a nonempty string (strcat('','.');) produces an error on some Matlab versions. This problem could occur using the plot routines.