MAT 203: Calculus III with Applications, Spring 2026

Instructor: Johan Asplund, johan.asplund[at]stonybrook.edu, Office: Math Tower 3-116
Class time and location: MW 5:00–6:20pm, Earth&Space 001
Office hours: MW 4:00–5:00pm (Math Tower 3-116) and Tue 5:00–6:00pm (MLC via Zoom)

Recitation 1: Tue 2:00–2:55pm, Physics P130
TA: Jiaji Cai

Recitation 2: Wed 11:00–11:55am, Library N4072
TA: Aritra Chatterjee

Recitation 3: Tue 12:30–1:25pm, Physics P112
TA: Jiaji Cai

Recitation 4: Fri 2:00–2:55pm, Physics P116
TA: Adityo Mamun

Recitation 5: Wed 9:30–10:25am, Physics P116
TA: Aritra Chatterjee

Syllabus: Here.
Textbook: OpenStax Calculus Vol. 3 (Free; online copy here.)

Homeworks/quiz pool: Most weeks, two homework problems and a pool of 4–6 quiz problems are assigned. The homework problems are due in the recitation the upcoming week, and one problem from the quiz pool will be given as a quiz problem in the recitation the upcoming week.

Midterm I Practice materials: Practice problems (solutions). Old midterm (solutions).


Tentative schedule

Date Topic Read HW Quiz pool Due
Mon Jan 26 Vectors 2.1, 2.2 (notes) 2.2.88, 2.4.190 2.1: 6, 10
2.2: 92
2.3: 126
2.4: 186
Week of Feb 2
Wed Jan 28 Dot product and cross product 2.3, 2.4 (notes)
Mon Feb 2 Lines and planes 2.5 (notes) 2.5.260, 1.2.74 2.5: 244
1.1: 10, 34
1.2: 62, 94
Week of Feb 9
Wed Feb 4 Parametrizing curves 1.1, 1.2 (notes)
Mon Feb 9 Conic sections and quadratic surfaces 1.5, 2.6 (notes) 1.5.268, 2.6.324 1.5: 300
2.6: 328, 342
2.7: 364
Week of Feb 16
Wed Feb 11 Spherical coordinates and vector-valued functions 2.7, 3.1 (notes)
Mon Feb 16 Calculus of vector-valued functions and curvature 3.2, 3.3 (notes)
Wed Feb 18 Midterm review All of the above (except 3.3)
Mon Feb 23 Snow day
Wed Feb 25 Midterm I (In class) (solutions)
Mon Mar 2 Functions of several variables and limits 4.1, 4.2 (notes) 4.2.82, 4.3.158 4.1: 8
4.2: 72, 102
4.3: 118, 142
4.4: 170
Week of Mar 9
Wed Mar 4 Partial derivatives and tangent planes 4.3, 4.4 (notes)
Mon Mar 9 The chain rule 4.5 (notes) 4.6.284, 4.7.334 4.5: 218, 246
4.6: 264, 280
4.7: 310, 312
Week of Mar 23
Wed Mar 11 Directional derivatives and the gradient 4.6 (notes)
Mon Mar 16 No class (Spring recess)
Wed Mar 18 No class (Spring recess)
Mon Mar 23 Maxima/minima problems 4.7 4.8.378, 5.1.34 4.8: 368
5.1: 14, 30, 36
Week of Mar 30
Wed Mar 25 Lagrange multipliers 4.8
Mon Mar 30 Double integrals I 5.1 5.3.136, 5.4.208 5.2: 82
5.3: 134, 148
5.4: 182, 200
Week of Apr 6
Wed Apr 1 Double integrals II 5.2, 5.3
Mon Apr 6 Triple integrals 5.4, 5.5
Wed Apr 8 Midterm review 4.1–5.5
Mon Apr 13 Midterm II (In class)
Wed Apr 15 Vector fields 6.1
Mon Apr 20 Line integrals, conservative vector fields 6.2, 6.3 6.2.70, 6.4.196 6.2: 66, 68
6.3: 116, 122
6.4: 174
Week of Apr 27
Wed Apr 22 Green's theorem 6.3, 6.4
Mon Apr 27 Divergence and curl, surface integrals 6.5, 6.6 6.5.220, 6.6.286 6.5: 216, 226
6.6: 274, 284
Week of May 4
Wed Apr 29 Stokes' theorem 6.7
Mon May 4 The divergence theorem 6.8
Wed May 6 Final review All of the above
Wed May 13 Final Exam: 5:30–8:00pm, Room TBA