MATLAB: Accuracy of Simulation time

Question

Hi, I am facing an unexpected scenario while debugging. Sample time of my model is 0.002 (Discreet System). I am running a m file at each sample time in the background. following is my sample code. curTime is noting but current simulation time —————————– if curTime == 1.400 a = 09; end —————————— Now problem is after some time my simulation time is appearing as 1.40000000000000001 so if condition (if curTime == 1.400) is never getting satisfied. Can any body suggest a possible solution.

Answer 1

Floating point accuracy:

http://www.mathworks.com/matlabcentral/answers/57444-faq-why-is-0-3-0-2-0-1-not-equal-to-zero