Calculus 3 - Vector Calculus Online Course For Credit

If you have finished your Calculus I and II courses, then the next set of courses to complete are:

Multivariable Calculus
Also called Vector Calculus, Calculus III, or Calculus IV - they are all essentially the same course
Differential Equations
Linear Algebra
Probability Theory

Calculus 3 - Vector Calculus - Multivariable Calculus is an excellent course to jump off into the online course experience - the curriculum is highly visual, and the course content is less about "drill & practice" type mathematics, and more about concepts and relationships, generalizing the theorems of 1-dimensional calculus to multiple dimensions.

No matter which major or specialization you might be aiming for - computer science, engineering, physics, economics, business, data science - a strong background in multivariable calculus will put you ahead of the pack and give you the foundations necessary to excel in these other academic and practical disciplines.

Here is a video about earning real academic credits from Distance Calculus @ Roger Williams University:

Earning Real Academic Credits for Calculus

Calculus 3 Course Preview

Calculus 3 course can best be described as a "the first semester course of Differential and Integral Calculus to functions of many variables".

This course has many names, all being equivalent:

Calculus 3
Calculus 4
Calculus III
Calculus IV
Vector Calculus
Calculus of Many Variables
Calculus of Several Variables

At Distance Calculus, we call our "Calculus 3" course as Multivariable Calculus - DMAT 355 - 4 credits.

Below are some links for further information about the Calculus 3 course via Distance Calculus @ Roger Williams University.

Distance Calculus - Student Reviews

Jessica M.★★★★★

Posted: Feb 25, 2020

Courses Completed: Applied Calculus

I highly recommend this course. I started the Kennedy School at Harvard with a last-minute admission, but my application required the Liberal Arts calculus course, so I had to finish the course in 3 weeks. Diane was an awesome instructor! The class was surprisingly interesting. If you need to take calculus fast, this is the program to use.

Transferred Credits To: Kennedy School of Government, Harvard University

Emmy★★★★★

Posted: May 26, 2025

Courses Completed: Applied Calculus

Distance Calculus was the perfect answer to getting ahead in math over the summer of my junior year in HS. I was able to complete the entire course over the summer. The teacher was responsive and the course was understandable. Highly recommend.

Transferred Credits To: Syracuse University

Daniel Marasco★★★★★

Posted: Jan 13, 2020

Courses Completed: Multivariable Calculus

This course was more affordable than many, and the flexible format was terrific for me, as I am inclined to work very diligently on tasks on my own. It could be dangerous for a person who requires external discipline more, but it works well for self-starters, allowing you to prioritize when you have other pressing work. I was a full time teacher adding a math certification, and this course allowed me to master the math while working around my teaching schedule and fitting work into moments here and there when I had time. I was able to transfer the credits to Montana State University, Bozeman for my teaching internship program without a hitch. The instructors were all very helpful and patient, even when I failed to see a ridiculously simple solution on one problem after 20 emails back and forth. Overall, I was more pleased with my experience in this class than I was with any of my other 9 courses.

Transferred Credits To: Montana State University, Bozeman

M M.★★★★★

Posted: Feb 8, 2026

Courses Completed: Precalculus, Calculus I

The courses were excellent. Very flexible and engaging and the platform offers a lot of upper-level courses. Dr. Curtis is an outstanding professor and very responsive. I would take again.

Transferred Credits To: None yet

Tanja B.★★★★★

Posted: Jan 28, 2026

Courses Completed: Calculus I

After two failed attempts at my university, this course helped me understand Calculus. The live maths tool along with Dr. Curtis were especially helpful, allowing me to visualize concepts and expand my understanding. The explanations were clear, the examples practical, and I could learn at my own pace, which built my confidence. Thank you.

Transferred Credits To: University of Namibia

Henry F.★★★★★

Posted: Dec 18, 2025

Courses Completed: Differential Equations

Transferred Credits To: Saint Joseph High School