simulink - Time driven simulation backwards steps -


i looking alternative simulink allow control stepping mechanism. same concern raised in question, simulink not allow backwards stepping, complex systems x(t,u) "changing variables" (t <- -t) requires weeks of work, cannot controlled (u) correctly due interdependance between past states , present decisions (u=f(x(s)),s<=t).

conceptually, trick consists in manually storing previous states in memory : simulink user, difficult , error prone, whereas stepping backwards in time simple , fit nicely in simulink, developer's point of view.


Comments

Post a Comment

Popular posts from this blog

4x4 Matrix in Python -

im trying code 4x4 matrix in python random integers 1-4. thats easy enough problem want each row , each column 1 time uses of each digit 1-4 example 1 2 3 4 2 3 4 1 3 4 1 2 4 1 2 3 my code 33% of time in loop there happens somthing this 2 1 4 3 3 4 2 1 1 3 x <-------- because of programm cant contiune , end in infinity loop helb how can out? code below """ programm playing game skyline """ random import randrange row1 = [] row2 = [] row3 = [] row4 = [] allrows = [row1, row2, row3, row4] column1 = [] column2 = [] column3 = [] column4 = [] allcolumns = [column1, column2, column3, column4] def board(): in range(4): j = 0 while len(allrows[i]) != 4: x = randrange(1,5) print(i, j) if x not in allrows[i] , x not in allcolumns[j]: allrows[i].append(x) allcolumns[j].append(x) j += 1 else: continue boa...
Read more

python - String indices must be integers and while issue -

i writing code school homework. assignment this: write code read book codes till "000" entered , split books 2 categories depending on first 4 digits entered isbn , issn. note : use str , check prefix of code (in case isbn , issn). here code: bookarray = [] booknumber = str(input("give me book code - type 000 if want cancel")) while booknumber != "000": bookarray.append(booknumber) booknumber = str(input("give me book code - type 000 if want cancel")) if booknumber[0,4] == "isbn": isbnarray = booknumber elif booknumber[0,4] == "issn": issnarray = booknumber print(issnarray) print(isbnarray) any regarding same appreciated! in first year in python @ school. edit: expected output should 2 lists books' code numbers. currently, face autonomous loop on "while" not sure of how , why. if booknumber[0,4] == "isbn": you're passing tuple index booknumber ex...
Read more

wso2is - WSO2 IS 5.0.0 SP1 After restart there is authentication error -

i have configured service provider sso saml2 web sso configuration. the single sign on & logout working fine, when logout , leave browser on login page of wso2 is, , restart wso2 is, when type username/password login in page left open in wso2 is, following error occurs: tid: [0] [is] [2017-03-28 08:03:29,462] debug {org.wso2.carbon.identity.application.authentication.framework.util.frameworkutils} - authentication context null {org.wso2.carbon.identity.application.authentication.framework.util.frameworkutils} tid: [0] [is] [2017-03-28 08:03:29,462] debug {org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.defaultrequestcoordinator} - session data key : cbd70356-49e3-423d-8542-3d4a0c7ad2c6 {org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.defaultrequestcoordinator} tid: [0] [is] [2017-03-28 08:03:29,462] error {org.wso2.carbon.identity.application.authentication.framework.handler.request.impl.defaultreques...
Read more