- Histogram & cumulative frequency from grouped data | CalcBE
Enter grouped or raw data to build a derived frequency table, histogram (frequency or frequency density), and cumulative frequency ogive. Detect unequal widths, highlight modal/median classes, copy a shareable URL, an…
- Calculadora do teorema de Pitágoras – diagrama e modelo de áreas | CalcBE
Resolva e visualize a²+b²=c² com diagrama de triângulo retângulo e modelo de áreas. Encontre qualquer lado, verifique um triângulo ou calcule distâncias com radicais exatos, passos, URL, LaTeX e SVG.
- Simultaneous equations solver with graph view | CalcBE
Solve simultaneous linear equations with elimination, substitution, and graph views. Fractions and decimals are normalized, no solution or infinite solution is classified, and you can copy a shareable URL, LaTeX, and…
- Autovalores e autovetores (2×2, 3×3) — com passos | CalcBE
Calcule autovalores/autovetores, polinômio característico, diagonalização e resíduos; LaTeX/CSV e link compartilhável. Útil para estudar álgebra linear e checar exercícios com matrizes 2×2 ou 3×3.
- Deck & Terrace Paint Area Calculadora | Gallons & Liters | CalcBE
Estimate deck and terrace paintable area plus primer/topcoat gallons or liters from one rectangle, multiple zones, or a known area. Switch ft/m, include gaps and edges, add railing, set coats, waste, and coverage over…
- Exterior Paint Area & Quantity Calculadora | CalcBE
Estimate exterior wall area and paint gallons or liters from building dimensions, wall segments, or a known area. Adjust doors, windows, coats, waste, primer, and coverage presets.