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NextCalc Pro

Scientific Calculator & Mathematical Visualization Platform

Current Release: v1.5.2 (July 11, 2026) — Release Notes

Live Demo | GitHub Repository | Releases

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Overview

NextCalc Pro is a comprehensive scientific calculator and mathematical visualization platform built as a monorepo with Next.js 16, React 19, TypeScript 7 (the native Go compiler gates all 10 packages), and GPU-accelerated rendering.

Key Numbers

• 49 page routes
• 8 languages (en, ru, es, uk, de, fr, ja, zh)
• 23 math engine modules
• 3 Cloudflare Workers
• 22 GraphQL queries + 20 mutations + 2 subscriptions
• 9 colormaps + 5 HDR cubemap themes

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Latest Updates

Evergreen bump (2026-08-27, post-v1.5.2, unreleased)

63 dependency bumps landed after the v1.5.2 release: Next.js 16.4 canary, TypeScript 7.1-dev now gates all 10 packages (the last two TS 6.0.x holdouts — web and plot-engine — migrated once TS 7.1 shipped its JS API and the three.js TSL checker hang was fixed upstream), Prisma 8.1 dev, Vitest 5 RC, pnpm 12, Hono 4.13, KaTeX 0.18, Motion 13, radix-ui 1.7 rc — with the full 4,550-test suite green.

v1.5.x releases

v1.5.2 — forum post SSR now executes GraphQL in-process via SchemaLink (no more deployment-protection 401s turning into "Post not found"), the admin profile renders its Architect tier, and the forum background became a compositor-only OKLCH aurora.

v1.5.1 hotfix — restored the level-icon avatars (they were data-referenced, not dead code), fixed comment upvotes (a schema defect dating to February — they had never worked), comment posting no longer collapses the thread, Lorenz GPU particles render again (upright, in their cage), ODE view auto-fits the solution, PDE 3D colormap works in the default view, and the profile owner gained an admin-only avatar icon picker.

• Evergreen dependency sweep (v1.5.0): every dependency at its absolute-newest published version in any channel — Next.js 16.3 canary, React 19.3 canary, graphql 17, Vitest 5, Prisma 7.9, pnpm 11 GA — and TypeScript 7.1 (native Go compiler) became the blocking typecheck gate for 8 of the 10 packages (full-workspace typecheck ~6 min → ~22 s); the remaining two migrated in the 2026-08 bump above -- see Architecture
• React Compiler enabled across the web app, plus GraphQL fragment masking with useFragment
• Real cross-instance GraphQL subscriptions: Redis Streams events are actually consumed (overlap-proof, tip-anchored polling) — multi-instance SSE delivery now works
• Plot correctness: adaptive-sampling fixes (grid-resonance aliasing that flattened functions like sin(10πx), lost discontinuity breaks at asymptotes, an inverted refinement criterion), bounded sample cache, stale-geometry and VAO fixes — see Plot-Engine
• Math engine: Complex.pow for arbitrary exponents, compound unit expressions (km/h, kg*m/s^2), a 16-problem competitive-accuracy regression suite, and CAS polynomial-division fixes including a long-masked infinite loop in lcmPolynomials — see Math-Engine
• Localization: the full worksheets namespace now exists, properly translated, in all 8 locales
• Dead-code purge: ~115 dead files removed (net −9k lines), shipped through a pre-merge adversarial review (42 agents; 19/20 findings confirmed and fixed)

Previously (v1.4.0)

• Forum localization fix: post views, upvotes, and relative timestamps now render in your selected locale — they were using the runtime default across all 7 non-English locales (ru, es, uk, de, fr, ja, zh)
• Idiom modernization (behavior-preserving): code rewritten to the newest idioms of each pinned dependency — Zod 4 (z.url()/z.uuid()), motion/react, Tailwind v4 bg-linear-*/oklab + size-*, React 19.3 useEffectEvent, shadcn data-slot across all UI primitives, Hono zValidator across all 3 Workers
• Observability: real Sentry capture wired (manual errors + error boundaries were console-only) and instrumentation-client.ts migration (restores client-side Sentry/navigation tracing under Turbopack)
• TS7-forward: the advisory tsgo (TypeScript 7 native preview) typecheck shipped green across the non-Three.js-TSL packages — the groundwork for v1.5.0's native gate

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Quick Links

Topic	Description
Getting Started	Install, configure, and run locally
Architecture	System design, data flow, and design decisions
Math Engine	23 computation modules with usage examples
Plot Engine	GPU rendering pipeline and colormaps
GraphQL API	Full API reference (queries, mutations, types)
Cloudflare Workers	Edge microservices (CAS, export, rate limiter)
Database Schema	Prisma models, relationships, and enums
Internationalization	i18n setup and translation workflow
Deployment	Vercel, Cloudflare, and CI/CD
FAQ	Common issues and solutions

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Tech Stack

Category	Technology
Framework	Next.js 16.4 canary + React 19.3 canary
Language	TypeScript 7.1-dev native (all 10 packages) -- see Architecture
Styling	Tailwind CSS 4.3 (OKLCH)
State	Zustand 5.0
3D	Three.js 0.185-line
ORM	Prisma 8.1 dev
GraphQL	Apollo Server 5.5 / Client 4.3
Cache	Upstash Redis
Workers	Hono 4.13 on Cloudflare
Build	Turborepo 2.10 canary
Testing	Vitest 5 RC + Playwright 1.63 alpha
Linting	Biome 2.x
Package manager	pnpm 12

Exact pinned versions live in each package's package.json.