CoCalc by SageMath, Inc.

Excited to showcase CoCalc at the 2nd MOERFI Demo Day with GWDG at the Rhineland-Palatinate State Parliament! We're diving into the future of sovereign AI, open infrastructure, and rethinking tools/editors in practice. #CoCalc #GWDG #MOERFI2026

We are kicking off the new year with a bang at #JMM2026! The energy is always high here, and we're looking forward to reconnecting with old friends and meeting the new faces shaping our field. #MathTwitter #SageMath #CoCalc

Explore how γ controls oscillation decay in x'' + 2γx' + ω₀²x = 0. Download our ODE template to compare undamped, underdamped, critically damped & overdamped solutions with interactive phase portraits. cocalc.com/share/public_p… #HarmonicOscillator #Dynamics

We had an excellent time exhibiting at the American Geophysical Union in New Orleans, LA, this week! We’ve been letting folks know about our new locally installable version of the platform, CoCalc+.

@akoz33 SageMath 🤠

Preparing for tomorrow’s linear algebra class

We had an excellent time participating in the Topology, Algebra and Geometry in Data Science, TAG-DS, conference at University of California San Diego. See you around town this week for NeurIPS. #ML #mathematics

Why does heat diffusion smooth everything out? The ∂²u/∂x² Laplacian term is key! Download our PDE template to visualize Gaussian initial conditions evolving under ∂u/∂t = α∇²u with Dirichlet boundaries. cocalc.com/share/public_p… #HeatEquation #PDEs #LaTeX

If you plan to attend the Joint Mathematics Meeting this January, I would highly encourage you to sign up for the congressional visits day (Jan. 8th). Let our Congress members know about the impacts of cuts to NSF grant funding and changes to visas: google.com/url?q=https://…

@zicokolter Hi Zico, I’m just curious if you have ever heard of our platform! I’d love to tell you how it could be helpful for automatic grading, streamlining set up and running your students code.

#RTXA6000 #GPU 48GB 10,752 CUDA cores $0.65/hr (metered per-second). Start in CoCalc, run directly on the server (no proxy). 1-click VS Code, JupyterLab, X11. File Sync, Persistent Disk, TimeTravel, remote kernels. doc.cocalc.com/compute_server…

We’re downtown at Seattle Life Sciences Networking Night! #pnw #seattle #tech #networking

#A100 #GPU 80GB $1.71/hr (metered per-second). Start in CoCalc, then work directly on the server (no proxy). 1-click JupyterLab, VS Code, X11. File Sync, Persistent Disk, TimeTravel, remote kernels. doc.cocalc.com/compute_server…

From integrating factors μ(t) = e^∫P(t)dt to damped oscillators! Get our differential equations LaTeX template featuring analytical solutions, numerical comparisons, and phase space (x, dx/dt) visualization. Download: cocalc.com/share/public_p… #ODEs #PhaseSpace #LaTeX

"The Linear Algebra a Beginning Graduate Student Ought to Know" link.springer.com/book/10.1007/9… Contents: 1. Notation and Terminology 2. Fields 3. Vector Spaces Over a Field 4. Algebras Over a Field 5. Linear Independence and Dimension 6. Linear Transformations 7. The Endomorphism Algebra of a Vector Space 8. Representation of Linear Transformations by Matrices 9. The Algebra of Square Matrices 10. Systems of Linear Equations 11. Determinants 12. Eigenvalues and Eigenvectors 13. Krylov Subspaces 14. The Dual Space 15. Inner Product Spaces 16. Orthogonality 17. Selfadjoint Endomorphisms 18. Unitary and Normal Endomorphisms 19. Moore–Penrose Pseudoinverses 20. Bilinear Transformations and Forms

Human metabolism: 82 W basal rate, 7.76×10²⁵ ATP molecules hydrolyzed daily. Equivalent 65 kg ATP mass recycled ~1000×/day. ATP hydrolysis ΔG ≈ 55 kJ/mol under cellular conditions. Energy currency of life. cocalc.com/share/public_p…

@tsujimotter We could help with that!

ちょっと素イデアル分解を計算したいだけなんだけど、久しぶりに起動したCoCalcが仕様変わっててよくわからんし、Magma Calculatorもなんだか動かない。

#H100 #GPU $2.40/hr (metered per-second). Launch from CoCalc, then run directly on the machine (no proxy). Added benefit of one-click access to X11, VS Code, JupyterLab with File Sync, Persistent Disk, TimeTravel version control, remote kernels, and more. doc.cocalc.com/compute_server…

Hawking temperature for stellar-mass black hole (10 M☉): 6.17×10⁻⁹ K. Evaporation time: 2×10⁷⁰ years—10⁶⁰ times universe age. Larger black holes colder (T ∝ 1/M). Example Notebook: cocalc.com/share/public_p…

Four quantum numbers describe every electron in every atom. They emerge from the Schrödinger equation and organize the entire periodic table. Explore with Julia. cocalc.com/share/public_p… #JuliaLang #quantum

What makes a PDE solver stable? Download our numerical PDE template to explore the r = αΔt/Δx² ≤ 0.5 stability criterion for explicit finite difference schemes. See instability emerge when r exceeds bounds! cocalc.com/share/public_p… #NumericalPDE #FiniteDifference