I am looking at a sentence in my thesis, and I am not sure about the usage of "make".
Should I say
In addition, as a result of the xxx principal, the xxx product operation in (1) makes the received signals to have a non-linear structure.
"In addition, as a result of the xxx principal, the xxx product operation in (1) makes the received signals to have a non-linear structure."or
In addition, as a result of the xxx principal, the xxx product operation in (1) makes the received signals have a non-linear structure.
or "In addition, as a result of the xxx principal, the xxx product operation in (1) makes the received signals have a non-linear structure." ?
Thanks a lot!