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Recent Changes

Track the latest updates and changes made to Siteview across all tools and resources. Showing page 4 of 7.

Version 3.16.7 (March 31, 2026)

Statistics, Financial Math & Calculus Foundations Lesson Rewrites + 7 New Calculators

  • Statistics & Probability — 10 Lessons Rewritten - All statistics lessons updated to the adult-learning template v2. Topics: Collecting & Organizing Data, Measures of Center, Measures of Spread, Box Plots & Five-Number Summary, Histograms & Frequency Distributions, Scatter Plots & Correlation, Introduction to Probability, Compound Probability, Normal Distribution & Z-Scores, and Statistical Inference & Hypothesis Testing.
  • 3 New Statistics Calculators - Frequency Table Generator (builds distribution tables with relative and cumulative frequency), Probability Tree (visual multi-step event probability calculator), and One-Proportion Z-Test — all active and linked to the Statistics & Probability topic (migration 064).
  • Financial Math — 10 Lessons Rewritten - Full v2 template rewrite covering Percentages in Finance, Percentage Increase & Decrease, Simple Interest, Compound Interest (Basics & Over Time), Present & Future Value, Loans & APR, Monthly Payments & Amortization, Savings & Investment Growth, and Comparing Financial Decisions.
  • 5 New Financial Calculators - Debt Payoff Planner (standard vs. accelerated payoff with amortization table), Budget Planner 50/30/20 (target vs. actual spending bars), Net Worth Calculator (13 asset/liability inputs, debt-to-asset ratio), ROI Calculator (net profit, multiplier, CAGR), and Inflation & Purchasing Power Calculator (year-by-year table, power-loss bar) — migrations 065 & 066.
  • Calculus Foundations — 10 Lessons Rewritten - Full v2 template rewrite covering Functions & Graphs, Slopes & Rates of Change, Linear vs. Nonlinear Relationships, Introduction to Limits, Instantaneous Rate of Change, Introduction to Derivatives (Power Rule), Understanding Derivatives (critical points, optimization), Introduction to Integrals (Reverse Power Rule), Understanding Integrals (Riemann sums, net area), and The Fundamental Theorem of Calculus.
  • Calculus Calculator Audit - Topic cleaned to 11 foundations-appropriate active calculators: Function Plotter, Slope Calculator, Limit Calculator, Derivative Calculator, Power Rule Derivative, Tangent Line Solver, Definite Integral, Indefinite Integral, Function Evaluation, Second Derivative, and Optimization Calculator. 13 advanced calculators (chain rule, Taylor series, ODE solvers, etc.) removed from the topic. 3 additional calculators activated (migration 067).
  • Horizontal Lesson Rewrite — 9 of 10 Topics Complete - All topics except Measurement & Unit Conversion now fully rewritten to the adult-learning template v2.

Version 3.16.6 (March 30, 2026)

Trigonometry Lesson Rewrite & Calculator Activation

  • Trigonometry — 10 Lessons Rewritten - All trigonometry lessons updated to the adult-learning template v2 (Why This Matters, Objectives, Vocabulary, Visual Aid, 3 Worked Examples, Quick Check, Common Mistakes, Takeaways, Career Connection). Topics: Angles & Radians, Sine/Cosine/Tangent, SOHCAHTOA, Solving Right Triangles (Sides & Angles), The Unit Circle, Trig on the Coordinate Plane, Graphs of Trig Functions, Trig Identities, and Real-World Applications.
  • 14 Trig Calculators Activated - Angle Converter, Coterminal & Reference Angles, Trig Unit Converter, Inverse Trig (Principal Values), Sine Wave Generator, Wave Phase & Vertical Shift, Trig Identity Verifier, Double & Half-Angle Identities, Sum & Difference Formulas, Law of Sines, Law of Cosines, Bearing & Navigation, Elevation & Depression, and Projectile Motion — all now active and linked to the Trigonometry topic.
  • Old v1 Lesson Slugs Retired - Five superseded v1 lesson slugs (sohcahtoa-intro, unit-circle-foundations, trig-on-coordinate-plane, trig-identities-basics, trig-real-world-apps) set to draft status.
  • Lesson Rewrite Progress - 6 of 10 math topics now fully rewritten to the v2 adult-learning template: Arithmetic, Fractions, Ratios, Algebra, Geometry, and Trigonometry.

Version 3.16.5 (March 30, 2026)

Rectangular Prism Calculator & Geometry Polish

  • Rectangular Prism Calculator - New calculator engine computing volume, surface area, and space diagonal (3D Pythagorean Theorem) with 4-step breakdown. Linked to Surface Area and Volume geometry lessons.
  • Regular Polygon Calculator Activated - Now linked to the Perimeter & Area lesson in Geometry & Measurement.
  • Geometry Topic - Now has 20 active calculators with 30 lesson→calculator links all verified active.

Version 3.16.4 (March 30, 2026)

Geometry & Measurement Lesson Rewrite

  • Geometry — 10 Lessons Rewritten - All geometry lessons updated to adult-learning template v2. Topics: Points/Lines/Angles, Triangle Fundamentals, Pythagorean Theorem, Perimeter & Area of Polygons, Circles, Surface Area of 3D Shapes, Volume of 3D Shapes, Distance & Midpoint, Similar Figures & Indirect Measurement, Composite Figures.
  • 15 Geometry Calculators Activated - Complementary/Supplementary Angles, Parallel Lines & Transversal, Triangle Angle Sum, Triangle Classification, Heron's Formula, Trapezoid, Polygon Angle, Arc Length, Sector Area, Cylinder, Cone, Sphere, Pyramid, Distance Formula 2D, and Midpoint Formula.

Version 3.16.3 (March 30, 2026)

Ratios & Algebra Lesson Rewrites + Speed Calculator

  • Ratios, Proportions & Rates — 10 Lessons Rewritten - Full adult-learning template v2 rewrite covering Understanding Ratios, Equivalent Ratios, Proportions, Cross-Multiplication, Unit Rates, Speed/Distance/Time, Scale Factors, Percent as a Rate, Mixture Problems, and Rates of Change.
  • Speed, Distance & Time Calculator - New calculator solving for distance, rate, or time using d = rt with step-by-step work and hours/minutes formatting (migration 062).
  • Algebra & Equations — 10 Lessons Rewritten - Full adult-learning template v2 rewrite covering Variables & Expressions, PEMDAS with Variables, Combining Like Terms, One-Step Equations, Two-Step Equations, Multi-Step Equations, Inequalities, Graphing on the Coordinate Plane, Slope & Linear Relationships, and Evaluating Functions.
  • 8 Algebra Calculators Activated - Multi-Step Equation Solver, Linear Inequality Solver, Compound Inequality Solver, Slope Calculator, Slope-Intercept Form, Point-Slope Form, Function Plotter, and Expanding Expressions.

Version 3.16.0 (March 29, 2026)

Sitemap, Favorites Rail & Content Polish

  • Sitemap.xml - Auto-generated sitemap covering all published calculators, lessons, math topics, and career pages. Served at /sitemap.xml and registered via robots.txt.
  • robots.txt - Added robots.txt blocking admin, auth, and private routes from crawlers; references the sitemap.
  • Favorites in Right Rail - Replaced the "All Topics" right-rail block with a live Favorites panel. Logged-in users see their saved items (calculators, lessons, careers, conversions); guests see a sign-in prompt.
  • Calculator Collection Assignment - All 197 previously uncategorized calculators now assigned to the correct Math, Career, or Real-World collection.
  • Calculator Toggle Bug Fix - Active/inactive toggle on the admin calculators page now correctly syncs the status field (published/draft) in addition to is_active. Status badge and filter tabs update instantly without a page reload.
  • Admin Nav Font Sizing - Section titles (Overview, Work Queue, etc.) now render larger than nav links for clearer visual hierarchy.
  • Lesson Content — Place Value - Rewrote "Understanding Place Value" (Arithmetic & Number Sense, Lesson 1) with a full beginner-friendly walkthrough: bundling analogy, digit breakdown table, three forms of writing numbers, common mistakes callout, 5 practice questions, money real-world example, and career connection.

Version 3.15.3 (March 28, 2026)

TinyMCE, Calculator Filters & Analytics Charts

  • TinyMCE on Admin Forms - Full WYSIWYG editor integrated into /admin/pages/edit (content field) and /admin/careers (overview + why_math_matters). Always-on init for form pages.
  • Calculator Admin Filter Tabs - Client-side collection and status filter tabs (pill style) added to the admin calculators list. Includes count badge and category label under each slug.
  • Calculator Status Data Fix - 197 inactive calculators corrected from published → draft to accurately reflect their inactive state.
  • Analytics Calculator Charts - Status Breakdown donut, Collection Breakdown horizontal bar, and Section Usage bar charts added to the Analytics page Calculators tab. All use dynamic color mapping and lazy-draw on tab click.

Version 3.15.1 (March 28, 2026)

Bug Fixes & Stability

  • Content Admin Warnings Fixed - Resolved undefined array key and undefined variable warnings in the Content Versioning admin page.
  • Page Version Integrity - Added a unique constraint on (page_id, version_num) to prevent duplicate version numbers caused by rapid saves.
  • Atomic Version Creation - Refactored PageService::createVersion to use a single atomic INSERT...SELECT query, eliminating the race condition that produced duplicate rows.
  • Popular Calculators Deprecation Fix - Resolved PHP 8.2 deprecation warning when a calculator has no associated topic.

Version 3.15.0 (March 28, 2026)

Favorites System

  • Universal Favorites - Members can now save Calculators, Lessons, Careers, and Unit Conversions to a personal favorites list.
  • Favorites Dashboard - New tabbed favorites panel on the user profile showing all saved items organized by type.
  • One-Click Save - Heart/bookmark toggle buttons integrated throughout calculators, lessons, career pages, and conversion results.
  • Migration 055 - New favorites table supporting all four content types with proper foreign key constraints.

Version 3.14.1 (March 27, 2026)

Admin Nav Overhaul

  • Workflow-Based Admin Nav - Restructured the admin left navigation into 9 color-coded sections: Overview, Work Queue, Content & Tools, Users & Access, Security, Communications, Analytics & Logs, System & Config, and Project.
  • Conversions Sub-Nav - Added visually nested sub-items for Categories, Units, and Rules under the Conversions admin entry.
  • CoachingService Fix - Fixed a SQL error caused by referencing the wrong column name for career titles in the coaching query.