Security

Run a real miniature BFV/CKKS pipeline over Z_q[x]/(xⁿ+1): exact invariant-noise budgets in bits, ciphertext multiplication with relinearization, modulus switching, SIMD slot packing and a bootstrapping refresh.

Data Visualization

Upload or paste a CSV and chart it instantly: histograms with Sturges / Freedman-Diaconis / Scott binning, scatter plots with Pearson r and a least-squares fit, and Tukey box plots — every chart downloadable as PNG and SVG.

Astronomy

Fit spectroscopic-binary radial velocities with a Levenberg-Marquardt orbit solver, derive the mass ratio and mass function, analyse eclipse-time O−C residuals, estimate the Rossiter-McLaughlin spin-orbit angle, and preview a geometric eclipse light curve.

Science & Education

k = A·e^(−Ea/RT) solved for k, A, or Ea (two-point form), with Ea in kJ/mol and kcal/mol.

Science & Education

ΔT_b = K_b·m·i from a solvent preset table with van't Hoff factor support and custom solvents.

Development

Test .NET/C# regular expressions online with named groups ((?<name>…)), IgnoreCase/Multiline/Singleline options, match highlighting, capture-group tables, a ready-to-paste C# snippet and an IgnorePatternWhitespace preview.

Science & Education

C = I·t both ways — runtime from capacity or capacity from runtime — with optional voltage for Wh and W.

Science & Education

A = ε·c·l both ways, with T = 10⁻ᴬ, %T, unit selectors, and the 0.05–1.0 working-range check.

Science & Education

K = κ/G and κ = K·G with unit selectors for κ, G and K — calibrate the cell or convert a reading into conductivity.

Science & Education

F = B·I·L·sinθ for a current-carrying wire, with unit selectors, the force magnitude, the 90° reference, and the right-hand-rule direction.

Science & Education

C = εᵣ·ε₀·A/d with area or square-side input, dielectric permittivity, and auto-scaled output from fF to µF.

Science & Education

Coulomb's law F = k·|q₁q₂|/r² with signed charges and unit selectors, reporting the force magnitude and whether the pair attracts or repels.