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Course information comes from the public UCLA General Catalog. Requisites are read from UCLA’s published wording and can be incomplete or out of date — check the official catalog listing and your department adviser before you enroll.

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MATH 33BDifferential Equations

Mathematics · 4 units · Undergraduate lower division (0-99)

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Highly recommended: course 33A. First-order, linear differential equations; second-order, linear differential equations with constant coefficients; power series solutions; linear systems.

P/NP or letter grading.

When it runs

Checking the Schedule of Classes…

Requisites

Official UCLA wording

Enforced requisite: course 31B with grade of C– or better.

BruinTree reads · Prerequisite

confidence 1.00 · from text
grade C- or better in
  • MATH 31B

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

MATH 33B

  • MATH 31BIntegration and Infinite Series
    • MATH 31ADifferential and Integral Calculus
      • MATH 1Precalculus

1 direct requisite. The whole upstream is here — 3 courses over 3 levels. Every course here opens its own tree.

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

MATH 33B47 more beyond

  • MATH 120ADifferential Geometry
    • MATH 105BMathematics and Pedagogy for Teaching Secondary School Mathematics
    • MATH 120BDifferential Geometryanother path to it
  • MATH 120BDifferential Geometry
  • A&O SCI 180Numerical Methods in Atmospheric Sciences
  • MATH 131AAnalysis16 more beyond
    • MATH 105CMathematics and Pedagogy for Teaching Secondary School Mathematics
    • MATH 114CComputability Theory
    • BIOMATH M207ATheoretical Genetic Modeling
    • MATH 114LMathematical Logic
    • MATH M114SIntroduction to Set Theory3 more beyond
      • MATH 220AMathematical Logic4 more beyond
    • BIOSTAT 255AAdvanced Probability and Statistics2 more beyond
      • BIOSTAT 250CMultivariate Biostatistics
    • MATH 120ADifferential Geometryanother path to it
    • MATH 120BDifferential Geometryanother path to it
  • MATH 131AHAnalysis (Honors)
    • MATH 151BHNumerical Analysis Part 2 (Honors)
  • BIOENGR C101Engineering Principles for Drug Delivery
  • MATH 131BAnalysis2 more beyond
    • MATH 240Methods of Set Theory
    • MATH 245AReal Analysis7 more beyond
      • MATH 247AClassical Fourier Analysis
    • EC ENGR M208BFunctional Analysis for Applied Mathematics and Engineering
      • EC ENGR M208CTopics in Functional Analysis for Applied Mathematics and Engineering
    • MATH 245BReal Analysis7 more beyond
      • MATH 247AClassical Fourier Analysisanother path to it
    • MATH 245CReal Analysis5 more beyond
      • MATH 252ATopics in Complex Analysis
    • MATH 246AComplex Analysis12 more beyond
    • MATH 246BComplex Analysis5 more beyond
    • MATH 246CComplex Analysis5 more beyond
  • MATH 132Complex Analysis for Applications
    • MATH 266AApplied Ordinary Differential Equations5 more beyond
      • MATH 266BApplied Partial Differential Equations2 more beyond
    • MATH 274AAsymptotic Methods
    • EC ENGR M208BFunctional Analysis for Applied Mathematics and Engineeringanother path to it
  • C&EE 103Applied Numerical Computing and Modeling in Civil and Environmental Engineering
  • MATH 132HComplex Analysis (Honors)
  • MATH 133Introduction to Fourier Analysis
  • C&S BIO M150Biological Modeling: Mathematical and Computational Approaches
    • COM SCI CM187Research Communication in Computational and Systems Biology
    • BIOENGR CM187Research Communication in Computational and Systems Biology
    • C&S BIO M187Research Communication in Computational and Systems Biology
    • COM SCI CM287Research Communication in Computational and Systems Biology
    • BIOENGR CM287Research Communication in Computational and Systems Biology
    • C&S BIO 198AHonors Research in Computational and Systems Biology1 more beyond
  • MATH 134Linear and Nonlinear Systems of Differential Equations
    • MATH 266AApplied Ordinary Differential Equationsanother path to it
  • MATH 135Ordinary Differential Equations
    • MATH 266AApplied Ordinary Differential Equationsanother path to it
  • CH ENGR 101ATransport Phenomena I
    • CH ENGR 101BTransport Phenomena II: Heat Transfer2 more beyond
      • CH ENGR 101CMass Transfer19 more beyond
    • CH ENGR 109Numerical and Mathematical Methods in Chemical and Biological Engineering
      • CH ENGR 101ATransport Phenomena Ianother path to it
    • CH ENGR C112Polymer Processes
    • CH ENGR C121Membrane Science and Technology
    • CH ENGR C212Polymer Processes
    • CH ENGR C221Membrane Science and Technology

62 courses list this as a requisite. Showing 60 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.

  • Fall 2025
  • Winter 2026
  • Spring 2026
  • Summer 2026
  • Fall 2026
  • Winter 2027
  • Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.