Should I complain about my professor?

No, because,

"He who has no sin, cast the first stone",

And,

"Pray for those that sin against you"

u could have spoken up and asked him why he's looking at you. but u need to consider what the consequences can be for you if he decides that he really doesn't like you.

my dad is really strict about not challenging authority and about how professors and the like can make things really difficult for you if u try to challenge them. harsher marking? bad references? less help given?

and he knows of somebody who had a tiff with a professor and ended up getting a really bad reference which ended up having a really big impact for his future. the professor wrote something like: "this person would be happier in their own country". but this was about 30 yrs ago.

but really, get ur degree, do really well, and then u'll be the one laughing. trying to get justice could end up hurting you more than hurting him.

yes u should talk to him,coz if u don't he gonna make ur life hard
good luck

I would just ignore him. Prove him wrong by getting the highest marks in the class....

Sura Mutafifeen

29. Verily! (During the worldly life) those who committed crimes used to laugh at those who believed.

30. And whenever they passed by them, used to wink one to another (in mockery);

31. And when they returned to their own people, they would return jesting;

32. And when they saw them, they said: "Verily! These have indeed gone astray!"

33. But they (disbelievers, sinners) had not been sent as watchers over them (the believers).

34. But this Day (the Day of Resurrection) those who believe will laugh at the disbelievers

35. On (high) thrones, looking (at all things).

36. Are not the disbelievers paid (fully) for what they used to do?

While you should trust that Allah will take care of him and the students laughing at you, the Qur'an also says to pursue the evildoers and fight them in the ways of Allah (non-violently).

That this man has different religious views from you is his right, but it is not his right to harass you for yours. He is being abusive and quite likely violating the terms of his employment contract. If he did it to you, he will do it to others.

If the semester is over and your grade has been submitted by him, you can choose to make an official complaint to your school. Without witnesses (unless you have some) and with these being statements the school can claim you misinterpreted, nothing is likely to happen on the surface. In other words, the school will likely deny he did anything wrong, but behind closed doors will give him a stern lecture about tolerance and keeping his own prejudice out of the classroom and that will be helpful for other students who take his classes.

While you should trust that Allah will take care of him and the students laughing at you, the Qur'an also says to pursue the evildoers and fight them in the ways of Allah (non-violently).

That this man has different religious views from you is his right, but it is not his right to harass you for yours. He is being abusive and quite likely violating the terms of his employment contract. If he did it to you, he will do it to others.

If the semester is over and your grade has been submitted by him, you can choose to make an official complaint to your school. Without witnesses (unless you have some) and with these being statements the school can claim you misinterpreted, nothing is likely to happen on the surface. In other words, the school will likely deny he did anything wrong, but behind closed doors will give him a stern lecture about tolerance and keeping his own prejudice out of the classroom and that will be helpful for other students who take his classes.