UPSC Maths Optional Syllabus
IAS maths optional syllabus & strategy for UPSC Mains 2023
Union Public Service Commission (UPSC) Civil Services Mains Exam comprises Mathematics as one of the Optional Subjects with 2 papers (Paper I and Paper II). The Maths Optional for CSE 2023 remains the same as was in 2021. Check UPSC Notification 2023 to stay updated with the current IAS Maths Syllabus. The IAS Mathematics Optional papers are 250 marks each with a total of 500 marks. Mains in IAS Exam has 9 papers.
This article provides you with the IAS Mathematics Syllabus in detail. Candidates may refer to the pattern of UPSC Mains in the linked article.
Maths Optional for UPSC Preparation Strategy
Some of the benefits of taking up Maths optional include:
 Static Syllabus: UPSC Maths Optional has a static syllabus. If you’ve studied this subject in your graduation, you’ll just need to brush up the concepts along with revision. The syllabus is also not linked to current affairs, so you’ll not have to constantly update your notes for revision.
 Objective hence scoring: Maths, being an objective subject, is extremely scoring. There is just one correct answer, hence, the scope of comparison is less. Since the questions are not subjective or opinion based but factual it is not up to the examiner to give marks if content and presentation are both up to the mark.
 Memorization is not needed: You obviously will need to memorize the theorems and formulas, but overall, the subject is more logicbased and hence, you will not have to memorize too much information.
Syllabus for UPSC Maths Optional – Paper 1
(1) Linear Algebra: Vector spaces over R and C, linear dependence and independence, subspaces, bases, dimension; linear transformations, rank and nullity, matrix of a linear transformation. Algebra of Matrices; row and column reduction, echelon form, congruence and similarity; rank of a matrix; inverse of a matrix; solution of system of linear equations; eigenvalues and eigenvectors, characteristic polynomial, CayleyHamilton theorem, symmetric, skewsymmetric, Hermitian, skewHermitian, orthogonal and unitary matrices and their eigenvalues.
(2) Calculus: Real numbers, functions of a real variable, limits, continuity, differentiability, mean value theorem, Taylor’s theorem with remainders, indeterminate forms, maxima and minima, asymptotes; curve tracing; functions of two or three variables: limits, continuity, partial derivatives, maxima and minima, Lagrange’s method of multipliers, Jacobian. Riemann’s definition of definite integrals; indefinite integrals; infinite and improper integrals; double and triple integrals (evaluation techniques only); areas, surface and volumes.
(3) Analytic Geometry: Cartesian and polar coordinates in three dimensions, second degree equations in three variables, reduction to canonical forms, straight lines, shortest distance between two skew lines; plane, sphere, cone, cylinder, paraboloid, ellipsoid, hyperboloid of one and two sheets and their properties.
(4) Ordinary Differential Equations: Formulation of differential equations; equations of first order and first degree, integrating factor; orthogonal trajectory; equations of first order but not of first degree, Clairaut’s equation, singular solution. Second and higher order linear equations with constant coefficients, complementary function, particular integral and general solution. Second order linear equations with variable coefficients, EulerCauchy equation; determination of complete solution when one solution is known using method of variation of parameters. Laplace and inverse Laplace transforms and their properties; Laplace transforms of elementary functions. Application to initial value problems for 2nd order linear equations with constant coefficients.
(5) Dynamics & Statics: Rectilinear motion, simple harmonic motion, motion in a plane, projectiles; constrained motion; work and energy, conservation of energy; Kepler’s laws, orbits under central forces. Equilibrium of a system of particles; work and potential energy, friction; common catenary; principle of virtual work; stability of equilibrium, equilibrium of forces in three dimensions.
(6) Vector Analysis: Scalar and vector fields, differentiation of vector field of a scalar variable; gradient, divergence and curl in cartesian and cylindrical coordinates; higher order derivatives; vector identities and vector equations. Application to geometry: curves in space, curvature and torsion; SerretFrenet’s formulae. Gauss and Stokes’ theorems, Green’s identities.
Syllabus for UPSC Maths Optional – Paper 2
(1) Algebra: Groups, subgroups, cyclic groups, cosets, Lagrange’s Theorem, normal subgroups, quotient groups, homomorphism of groups, basic isomorphism theorems, permutation groups, Cayley’s theorem. Rings, subrings and ideals, homomorphisms of rings; integral domains, principal ideal domains, Euclidean domains and unique factorization domains; fields, quotient fields.
(2) Real Analysis: Real number system as an ordered field with least upper bound property; sequences, limit of a sequence, Cauchy sequence, completeness of real line; series and its convergence, absolute and conditional convergence of series of real and complex terms, rearrangement of series. Continuity and uniform continuity of functions, properties of continuous functions on compact sets. Riemann integral, improper integrals; fundamental theorems of integral calculus. Uniform convergence, continuity, differentiability and integrability for sequences and series of functions; partial derivatives of functions of several (two or three) variables, maxima and minima.
(3) Complex Analysis: Analytic functions, CauchyRiemann equations, Cauchy’s theorem, Cauchy’s integral formula, power series representation of an analytic function, Taylor’s series; singularities; Laurent’s series; Cauchy’s residue theorem; contour integration.
(4) Linear Programming: Linear programming problems, basic solution, basic feasible solution and optimal solution; graphical method and simplex method of solutions; duality. Transportation and assignment problems.
(5) Partial differential equations: Family of surfaces in three dimensions and formulation of partial differential equations; solution of quasilinear partial differential equations of the first order, Cauchy’s method of characteristics; Linear partial differential equations of the second order with constant coefficients, canonical form; equation of a vibrating string, heat equation, Laplace equation and their solutions.
(6) Numerical Analysis and Computer programming: Numerical methods: solution of algebraic and transcendental equations of one variable by bisection, RegulaFalsi and NewtonRaphson methods; solution of system of linear equations by Gaussian elimination and GaussJordan (direct), GaussSeidel(iterative) methods. Newton’s (forward and backward) interpolation, Lagrange’s interpolation. Numerical integration: Trapezoidal rule, Simpson’s rules, Gaussian quadrature formula. Numerical solution of ordinary differential equations: Euler and Runge Kuttamethods. Computer Programming: Binary system; Arithmetic and logical operations on numbers; Octal and Hexadecimal systems; Conversion to and from decimal systems; Algebra of binary numbers. Elements of computer systems and concept of memory; Basic logic gates and truth tables, Boolean algebra, normal forms. Representation of unsigned integers, signed integers and reals, double precision reals and long integers. Algorithms and flow charts for solving numerical analysis problems.
(7) Mechanics and Fluid Dynamics: Generalized coordinates; D’ Alembert’s principle and Lagrange’s equations; Hamilton equations; Moment of inertia; Motion of rigid bodies in two dimensions. Equation of continuity; Euler’s equation of motion for inviscid flow; Streamlines, path of a particle; Potential flow; Twodimensional and axisymmetric motion; Sources and sinks, vortex motion; NavierStokes equation for a viscous fluid.
For details on similar optional subjects syllabus, check the linked article.
Booklist for UPSC Maths Optional
Paper1 
LINEAR ALGEBRA
CALCULUS
ANALYTIC GEOMETRY
ORDINARY DIFFERENTIAL EQUATIONS (ODE)
DYNAMICS AND STATICS
VECTOR ANALYSIS

Paper2 
ALGEBRA
REAL ANALYSIS –
COMPLEX ANALYSIS
LINEAR PROGRAMMING
PARTIAL DIFFERENTIAL EQUATIONS
NUMERICAL ANALYSIS AND COMPUTER PROGRAMMING For Numerical Analysis
For Computer Programming
MECHANICS AND FLUID DYNAMICS

How to prepare for UPSC Maths Optional Exam?
UPSC Maths Optional is a preferred choice of optional for engineering students owing to its objective syllabus. Here’re a few topics that will help you in preparation of UPSC Maths optional:
 Develop Conceptual Understanding: It is important to develop crystalclear conceptual understanding for a subject as conceptfocused as Maths. Hence, first and foremost, develop a good understanding of each of the topic that is a part of UPSC Maths Optional.
 Revise Optimally: Secondly, it is important to keep revising whatever you’re studying to retain the information. Hence, allocate fixed time for revision for maximum retention of the information. Practice through the previous year fulllength papers and mock tests.
 Be systematic: Presentation matters a lot in UPSC answerwriting. Hence, crack the art of answerwriting for your optional by glancing through toppers’ answer scripts or getting yours evaluated from the mentors.
 Do not cram mathematics: Do not try to cram mathematics, rather focus on building the logical flow of the questions. It will help you in solving all the type of questions that are asked in the exam.
 Prepare a formula sheet: Maths is a subject of formulas and theorems. It is essential to learn them to solve the questions. Hence, maintain a separate formula sheet or notebook that is handy. Keep revising it from time to time to ensure that you do not forget any important formula.
 Avoid Silly Mistakes: Practice enough to ensure that you’re not doing any silly mistakes while solving the questions.
This was a complete overview of UPSC Maths Optional Syllabus, Booklist and preparation strategy. If you’re still on the fence about your optional selection, you can check out how to choose UPSC Optional subject in the linked article.
Frequently Asked Questions about IAS Mathematics Syllabus
Is mathematics good optional for IAS?
Maths is and has always been a scoring subject, be it in the UPSC exams or any other exam. If you have prepared well and have written the answers correctly, you will most definitely score high marks.
What is the syllabus of UPSC maths?
there will be two papers, Paper 1 and Paper 2 in the UPSC Maths syllabus, and they cover topics like Linear Algebra, Calculus, Analytic Geometry, Ordinary, Differential Equations, Algebra, Real Analysis, Complex Analysis, Linear Programming, and Partial Differential Equations.
Is there any step marking for mathematics optional paper in IAS exam?
Yes, there is step marking in the optional Mathematics paper of UPSC CSE examination. Candidates may lose marks if they skip an important step while solving a problem.
What are some important books for Mathematics?
Some important Mathematics books for IAS exam are :
How do I start preparing for Maths optional in IAS Exam?
To prepare for IAS Mathematics Optional, just practice will not be enough. Start your preparation by practicing the NCERT Mathematics books of Class 11 and 12. This will help you to clear the concept along with it you need to practice questions from the reference books given according to the syllabus.
Is calculator allowed in IAS mains?
No, Candidates are not allowed to take calculators inside the examination hall for Mathematics paper in the IAS mains exam.
How much time will it take to complete Maths optional in IAS?
On average it will take 67 months. Then as per your understanding, comfort level and efforts, you can take less or more time. People who do not have prior exposure to Maths are going to take 78 months at least.