Models the equation: y(k) = y(k-1) + 0.5*dt*(x(k)+x(k-1)) where y(k) is the output, x(k) is the input, and dt is the digital update time. The digital update time is set by the user in seconds. One of the more stable approximations to integration. Often used in high performance digital control systems where accuracy and speed are important issues. Note the external override of the pulse train block to externalize the time between samples parameter.
Limitations:
1. Digital Update Time, sec >0 and >simulation stepsize"