CodeTikki's free animated tutorials for mathematics, algorithms, data structures, and programming. Learn binary search, sorting, dynamic programming, prime numbers, and more with step-by-step animations, flowcharts, pseudocode, quizzes, and coding problems.
18 tutorials available now
Every algorithm comes to life with step-by-step animations, flowcharts, and pseudocode execution traces.
Each tutorial includes progressive quizzes (L1–L9) and story-based coding problems. Earn XP as you learn.
From prime numbers to dynamic programming — content for every level, with clear learning paths.
Primes, divisibility, modular arithmetic, and the building blocks of cryptography.
What are prime numbers? Learn through animated Sieve of Eratosthenes, trial division, prime factorization trees, and an interactive prime checker.
Clock math, modular exponentiation, Fermat's little theorem, and its role in RSA cryptography.
Greatest common divisor, the Euclidean algorithm, extended GCD, and applications to fractions and cryptography.
The most efficient way to find all primes up to N. Animated step-by-step sieving with optimizations.
Break any number into its prime factors. Trial division, Pollard's rho, and factor trees.
Solve systems of modular congruences simultaneously. Used in cryptography and competitive programming.
a^(p-1) ≡ 1 (mod p). The foundation of primality testing and modular exponentiation.
Count numbers coprime to N. φ(N) and its role in RSA and Euler's theorem.
Counting, permutations, combinations, and probability — essential for algorithm analysis.
Factorials, nPr, nCr, and when to use each. Animated examples with real-world scenarios.
Sample spaces, conditional probability, Bayes' theorem, and expected value — with visual examples.
Encode combinatorial sequences as power series. A powerful tool for counting and recurrence solving.
Count unions by adding and subtracting intersections. The PIE formula with animated Venn diagrams.
Count ways to distribute identical objects into distinct bins. A classic combinatorics technique.
Sets, relations, functions, logic, and proofs — the language of computer science.
Sets, subsets, unions, intersections, Venn diagrams, and types of relations.
Propositional logic, truth tables, logical equivalences, and proof techniques (direct, contradiction, induction).
Injective, surjective, bijective functions. Domain, codomain, range, and inverse functions.
AND, OR, NOT, XOR. Boolean laws, De Morgan's theorem, and circuit simplification.
If N items go into M holes and N > M, at least one hole has 2+ items. Surprisingly powerful.
Vectors, matrices, eigenvalues, and transformations — the math behind ML and graphics.
Vector operations, dot product, cross product, linear independence, and basis vectors.
Matrix multiplication, transpose, inverse, determinant, and systems of linear equations.
Special vectors that only scale under a transformation. PCA, PageRank, and vibration analysis.
Map vectors to vectors linearly. Rotation, scaling, reflection, and projection matrices.
Limits, derivatives, integrals, and optimization — continuous math for ML and analysis.
What a function approaches as input approaches a value. L'Hôpital's rule and squeeze theorem.
Rate of change. Power rule, chain rule, product rule, and optimization with gradients.
Area under a curve. Definite and indefinite integrals, substitution, and integration by parts.
Partial derivatives, gradients, Jacobians, and multiple integrals — essential for ML.
// FAQ
CodeTikki tutorials are free, interactive, animated visual guides for mathematics, algorithms, data structures, and programming languages. Each tutorial includes step-by-step animations, algorithm flowcharts, pseudocode execution traces, progressive quizzes (L1–L9), and story-based coding problems.
Yes, all CodeTikki tutorials are completely free for students. You can learn prime numbers, binary search, sorting algorithms, dynamic programming, graph algorithms, Java, Python, C++, web development, and more at no cost. Sign up free to track your progress and earn XP.
CodeTikki tutorials cover mathematics (number theory, combinatorics, discrete math, linear algebra, calculus), algorithms (searching, sorting, divide & conquer, dynamic programming, greedy, graph algorithms, string algorithms, backtracking), data structures (arrays, linked lists, trees, heaps, hash tables, graphs), programming languages (Java, Python, C++, web development), and interview preparation (coding patterns, system design, behavioral).
CodeTikki tutorials use step-by-step animations to visualize every algorithm in action. Instead of just reading text, you watch binary search narrow down, counting sort distribute into buckets, and the Sieve of Eratosthenes cross out composites. Every tutorial also includes algorithm flowcharts, pseudocode execution traces, interactive tools, and progressive quizzes.
Yes, every available CodeTikki tutorial includes 10 story-based coding problems and 9 progressive quizzes (L1–L9). You can solve problems directly in CodeTikki's free online IDE supporting Java, Python, C++, and JavaScript — no installation required.
Yes, CodeTikki offers comprehensive DSA tutorials covering arrays, linked lists, stacks, queues, trees, BSTs, heaps, hash tables, graphs, binary search, sorting algorithms, dynamic programming, greedy algorithms, graph algorithms, and string algorithms — all with animated visualizations and practice problems.
Yes, CodeTikki tutorials are designed for coding interview preparation. The interview preparation category covers coding patterns (two pointers, sliding window, binary search, BFS/DFS, backtracking, DP), system design basics, and behavioral interview tips — complemented by 1000+ practice problems.
Sign up free on CodeTikki and get access to all tutorials, 1000+ coding problems, a free online IDE, quizzes, career roadmaps, and coding battles — all in one platform.
