What is u(1:1+int,1)?

Hello everybody,

I am looking for what is the meaning of u(1:1+int,1) ? I searched but i wasn't able to find what is this and purpose. I thought it is incrementing first row for each step. Am I wrong? Thank for your help..

Answer 1

[Nadir Altinbas]

u(1:1+int,1) this type commands represents unit step where 1+int depends on and interval increment by one and its usage by (for ....)

see also

http://www.mathworks.com/matlabcentral/answers/323383-plotting-a-unit-step-function-without-heaviside

Answer 2

[Fangjun Jiang]

Do the following line by line to unerstand it

u=magic(6)
int=4
1:1+int
u(1:1+int,1)