Meet The Distance Calculus Team

Unlike many other distance education courses, ALL instruction, grading, feedback, and interaction with the students is completed by qualified HUMAN instructors. We do not use AI or Multiple Choice or other automated grading mechanisms.

Head Professor: Robert R. Curtis, Ph.D.

Robert completed his B.A. with Highest Honors in Mathematics at the University of California, Santa Cruz, in 1987, followed by his M.A. and Ph.D. in Mathematics at the University of California, San Diego, in 1993, writing in algebraic geometry with advisors George Kempf and Adrian Wadsworth.

Robert began 1991 teaching at Delta College in California, traveling one day to visit master teacher Phil Smith in his new mathematics computer lab at American River College in Sacramento. Phil's students were learning Calculus II using a new graphical computer algebra program called Theorist, accomplishing long u-substitution integration problems with drag-and-drop ease on the Macintosh, a coupling of computer algebra usage with visual and symbolic learning. The new field of Distance Mathematics Education was born from a single Mac computer in Delta colleague Chris Barker's office, empowering Theorist files to be click-launched on the World-Wide-Web via the new Netscape (now Firefox) browser.

In 1995, Robert moved to Cambridge, Massachusetts to found MathMonkeys, and purchased Theorist in 1999, rebranding it to LiveMath. Robert continues to lead the programming team working on a Qt-based LiveMath to return it full multiplatform glory.

Robert co-founded the Distance Calculus program in 1997, originally at Suffolk University in Boston, Massachusetts; later moved to Shorter University in Georgia, and now at Roger Williams University in Rhode Island, USA, where Robert is the Head Professor and Program Director of the University College program.

Robert adapted the Calculus&Mathematica courseware series into LiveMath, as well as adding to further development of this wonderful curriculum series originally written by Bill Davis and Jerry Uhl, et al. Robert is currently working on the adaptation of the Alfred Grey's Differential Geometry Using Mathematica text to the Distance Calculus platform.

On a good day at low tide, Robert can be found at sunrise on a long beach walk with a thermos of coffee percolating new and interesting ways to experience mathematics empirically with computer algebra.

Primary Email: robert@distancecalculus.com

Instructor: Tatiana Marina Lollo

Primary Email: tatiana@distancecalculus.com

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Distance Calculus - Student Reviews

Andris H.★★★★★

Posted: May 3, 2020

Courses Completed: Applied Calculus

I found out from my MBA program that I needed to finish calculus before starting the MBA. They told me 3 weeks before term started! I was able to finish Applied Calculus from Distance Calculus. Definitely a great class. Thanks Distance Calculus!

Transferred Credits To: SUNY Stony Brook

Julia★★★★★

Posted: Jun 24, 2026

Courses Completed: Calculus I

As a full-time business owner completing an Executive MBA, I needed to satisfy a calculus prerequisite without putting my work on hold. Distance Calculus made that possible. The fully self-paced structure let me work early mornings and weekends around an unpredictable schedule, which a fixed-semester classroom course never would have allowed.
The course covered the core business calculus material thoroughly — derivatives, optimization, integration techniques including u-substitution, the Fundamental Theorem of Calculus, improper integrals, and numerical methods. The LiveMath computer algebra environment was central to the experience: it forced me to build each step explicitly rather than just arriving at an answer, which actually deepened my understanding of the mechanics.
Communication through the student portal was responsive when I had questions. For working professionals who need a rigorous, accredited calculus course on a flexible timeline, I'd recommend it.

Transferred Credits To: MIT Ebma

Anonymous★★★★☆

Posted: Jan 12, 2020

Courses Completed: Calculus I, Calculus II

I needed to brush up on my high school calculus and finally take Calc II before starting a graduate program that needed them as prereqs. This was perfect choice to fit in that summer. Got done at fast pace that I wanted and needed. Also had added bonus of one on one feedback and help when needed. Video lessons were better than many on campus instructors in large lecture settings. Recommend for anyone needing to satisfy prereqs at home institution.

Transferred Credits To: University of Michigan

Aiden B.★★★★★

Posted: Jul 29, 2026

Courses Completed: Calculus II, Multivariable Calculus, Differential Equations, Linear Algebra

After completing all the math offered by my highschool, I switched over to Roger Williams for Calculus II and onward. Overall, it has been a pretty great way to understand the topics online, with transferrable college credits. The exams are not terrible, and the courses cover the vast majority (if not all) of topics covered by traditional courses, with some unique ones added to. So far, I have taken four courses, with another one or two before I graduate.

The only problem with the course is the lack of pen and paper work. This shouldn't come as a crazy surprise with an online course, but there is not much emphasis on symbolic computation. Mathematica or other software does most of the heavy computation for you. The lectures usually show how to solve the problems through paper, but those skills are rarely put into practice. Literacy Sheets act as a way to do some of that (especially with the Calculus II & III course).

All in all, this isn't a huge issue. I just memorize and practice things like double integration, Laplace, ODE solving, matrix diagonalized form, row operations, etc. With a little outside work, this resolves itself. Without Roger WIlliams, I probably would not have been able to take any of these math courses in highschool.

So overall, a great choice for highschool advanced math, especially with transferrable credits.

Email: abarger@protonmail.com

Lucas L.★★★★★

Posted: Jun 25, 2026

Courses Completed: Multivariable Calculus

The professor as well as the TAs give great feedback when you need help with problems and the videos are great at explaining concepts. Return time on work is good and the work is not too much to handle.

Transferred Credits To: University of Wisconsin

Hari K.★★★★☆

Posted: Jun 24, 2026

Courses Completed: Linear Algebra

This course gives a perspective on Linear algebra that no traditional course does. I’d say i gained much more intuition for this subject from the DC course than my friends who took traditional courses elsewhere. As a cs major, this version of learning with visualization has helped me a lot in understand ML models. However the course doesn’t have videos for the last 2 chapers so i had to self learn with the mathematica notebooks. Response times are a little slow but since it’s a remote class, i guess it’s justified. Overall amazing course and definitely take this over traditional lin alg classes.