Vector Calculus (Calculus 3) in High School

Many very motivated and eager high school students will finish Calculus AB (Calculus I) and Calculus BC (Calculus II) during their junior or senior year of high school.

If you finish these AP Calculus courses during your senior year, then one option to get ahead with your academic plan is to complete the next course - Calculus 3 (Calculus III) - Multivariable Calculus - during the summer before you start your new undergraduate university. Earning real collegiate academic credits for Multivariable Calculus and then transferring those credits to your new undergraduate college/university is an excellent way to start your new school with some advanced mathematics credits under your belt.

Some very advanced students may finish Calculus I (AB) and Calculus II (BC) during their junior year of high school. For these students, enrolling in multivariable calculus, honors multivariable calculus, honors vector analysis, honors calculus 4, honors calculus IV, and perhaps Differential Equations and Linear Algebra, via Distance Calculus @ Roger Williams University is an excellent way to FINISH your lower division mathematics courses even before you step foot onto your new college/university campus the following Fall semester!

Here is a video about our Multivariable Calculus course via Distance Calculus @ Roger Williams University:

Calculus 3 Course Info

Multivariable Calculus & High School

After AP Calculus for High School Students

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

Rebecca M.★★★★★

Posted: Mar 17, 2020

Courses Completed: Calculus II, Multivariable Calculus

Fantastic courses! I barely made it through Cal 1, and halfway through Cal 2 I found this program. I took Cal 2 and then Multivariable and I just loved it! SOOOOOOO much better than a classroom+textbook class. I highly recommend!

Transferred Credits To: Tulane University

Hannah J.★★★★★

Posted: Apr 30, 2020

Courses Completed: Probability Theory

Probability Theory was a great course. Very very thorough. I thought it would never end :). I was very prepared for my coursework in economics. Excellent refereshher of derivatives and integrals - really forced me to remember that stuff from freshman cal.

Transferred Credits To: Boston University

Jorgen M.★★★★★

Posted: Apr 13, 2020

Courses Completed: Calculus I

I really enjoyed this course, much more than I thought I would. I needed to finish this course very fast before starting my graduate degree program @ Kellogg. I was able to finish in 3 weeks. I liked the video lectures and the homework process. I highly recommend this course.

Transferred Credits To: Kellogg School of Business, Northwestern Univ

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