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through code

Implement 1000+ algorithms from scratch, from foundational ML to CUDA kernels, with the math, visualizations, and research papers behind them.

gradient_descent.py Run

Loss surface L(w)L(\mathbf{w})

step 0|loss 5.372

  • L(w)\nabla L(\mathbf{w}) is correct
  • L(wk+1)<L(wk)L(w_{k+1}) < L(w_k) every step
  • w0\mathbf{w} \to 0 converges

All tests passed ✓

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Code ML from scratch

Write the algorithm yourself, run it against real test cases, and see exactly where it breaks. 1000+ problems from gradient descent to GANs.

linear_regression.py

loss L(w)|rolling down the gradient

import numpy as np

def linear_regression(X, y, lr=0.01):
    w, b = 0.0, 0.0
    for _ in range(100):
        err = w * X + b - y
        w -= lr * (err * X).mean()
        b -= lr * err.mean()
    return w, b

Write GPU Kernels

CUDA and Triton in the browser, compiled and executed on real silicon. From vector add to fused attention — no driver setup, no cloud bills.

matmul.cu · Tiled Matrix Multiply

C[i][j] = row(A, i)·col(B, j)

__global__ void matmul(
    float *A, float *B, float *C) {
  __shared__ float tA[T][T];
  int r = blockIdx.y * T + ty;
  for (int k = 0; k < N; k += T)
    acc += tA[ty][k] * tB[k][tx];

Implement AI/ML research papers

Transformer, ResNet, BERT, Diffusion — 13 landmark papers reconstructed layer by layer, until the citation becomes comprehension.

research/attention-is-all-you-need

implemented paper by paper

Landmark papers, implemented from scratch

1Attention Is All You Need2017
2BERT2018
3GPT-22019
4LLaMA2023
5Qwen2024

Build Agentic Systems

RAG pipelines, tool use, reasoning loops — built in live cloud sandboxes with real LLMs and vector databases. Edit, run, watch the trace change.

multi_agent.py · live sandbox

reason, act, observe|until the task is done

# ReAct agent loop
while not done:
    thought = llm(context)
    action  = parse(thought)
    obs     = tools.run(action)
    context += obs
    done     = is_final(obs)

Ace the interview

Role-based sheets curated from real interviews at Meta, Google, Airbnb and Uber. Plus ML system design with a live canvas and 500+ quizzes.

interview/research-engineer

build the profile ·train on the labs that hire

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  • 35 CUDA / GPU kernel problems
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  • ML Math blogs
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  • 500+ quiz questions across 12 modules
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  • Modern LLM architectures like GPT2, DeepSeek
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  • ML System Design problems
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  • FAANG-styled system design scenarios
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Questions, answered

Is TensorTonic free to use?

TensorTonic has more than 300+ coding problems, CUDA and GPU kernel exercises, 13 research paper implementations, and the full ML Math library completely free. Premium plans add worked solutions, structured study plan roadmaps, ML system design, and interview prep.

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Don't just watch ML theory. Implement it yourself, one algorithm at a time, and understand it in depth.

1000+ problemsReal cloud GPUsLive AI sandboxes