Summe Calculator vs HB Construction Calculator

Summe is a small calculator for big mathematics, with natural input, plots, matrices, finance, statistics, and much more. Readable math Thousands separator, implied multiplication, colored parentheses for natural and readable math. Plot 2D or 3D Graph curves, surfaces, and contour maps from the same input style, moving from quick sketches to full spatial views. Store results and more Save intermediate work and reuse it later, from quick totals to matrices, datasets, and custom formulas. Big function library Use built-in tools for finance, signal processing, probability, control, and numerical analysis. Equations Move between exact symbolic solutions and numerical roots, with plots that make crossings, branches, and solution structure visible. Ergonomic keypad Curved keys keep common actions close. Blue 2ND and green ALPHA modifiers, or long press on a key, reveal advanced symbols and variable names. Implicit functions Draw curves and surfaces from relationships directly, without first solving for a single output variable. Systems of equations Solve equations together, then use the plot to see the lines, planes, and their intersections. Derivatives Differentiate ordinary functions, even when formulas contain symbolic parameters. Then move into multivariable calculus with partial derivatives, and powerful operators like gradient, divergence, curl, Jacobian, Hessian, and Laplacian. Integrals Find antiderivatives and evaluate definite, improper, or multi-variable integrals from the same workflow. Differential equations Enter symbolic differential equations or numeric initial-value systems, then plot their behavior. Limits and series Evaluate one-sided limits, finite or infinite series, and recurrence sequences, including Fibonacci-style definitions in one line. Statistics Compute summaries, frequency tables, correlation, and regression models from stored data. Linear algebra Build matrices, then compute determinants, inverses, rank, row reduction, eigen data, and linear-system solutions. Vector field Describe and plot vector fields directly, or generate them from scalar models for physics, flow, electromagnetism, and geometry. Parametric curves Want to plot a spiral? Use coordinates that depend on a parameter, from flat paths to spatial curves. Parametric surfaces Sweep a two-parameter model into a complete 3D surface. Complex numbers Work naturally with phase, polar form, components, and conjugates, then display results in rectangular or polar mode. Optimization under constraints Find maximums and minimums with equality or inequality constraints, and see the allowed region and solution points on the plot. Random numbers Generate random samples, dice rolls, coin flips, and distributions, then turn samples into plots. Conversions Read binary and hexadecimal values directly, and convert integers across common number bases. Calculate everywhere Available from the major app stores for phone, tablet, and desktop. The math engine runs fully on your device: no cloud engine, no connection required. 57 languages The function browser is localized into your language across search, descriptions, and examples.

HB Construction Calculator is a powerful construction calculator built for contractors, carpenters, electricians, plumbers, HVAC technicians, concrete crews, estimators, and other construction professionals. Perform feet-inch-fraction math the way measurements are used on the jobsite, quickly convert between imperial and metric units, and access eight specialized construction calculators in one app. Works fully offline. No login. No account required. No paywall. 8 CONSTRUCTION CALCULATORS IN ONE APP ADVANCED CAL Calculate roof pitch, rise, run, diagonal, hip and valley rafters, jack rafters, stairs, circles, board feet, studs, blocks, drywall, footings, roofing squares, and more. MASTER 5 An everyday construction and carpentry calculator for stairs, arcs, irregular pitch calculations, jack rafters, weight, cost, and paperless tape measurements. ELECTRICAL CALCULATOR Perform electrical calculations including Ohm's Law, Kirchhoff equations, wire sizing, voltage drop, conduit fill, motor full-load current, motor protection, grounding, and other common electrical calculations. PIPE AND PLUMBING CALCULATOR Calculate pipe offsets, rolling offsets, fitting allowances, cut lengths, 45-degree fittings, flow, pressure, pipe sizing, and other common plumbing measurements. CONCRETE AND MASONRY CALCULATOR Calculate concrete volume, cubic yards, concrete bags, footings, walls, blocks, rebar, stairs, drop, and estimated truck loads. HVAC AND SHEET METAL CALCULATOR Calculate duct takeoffs, OGEE offsets, Fan Laws, velocity pressure, FPM, Law of Cosines, stretch-outs, and other HVAC and sheet metal measurements. EXCAVATION AND GRADING CALCULATOR Calculate cut and fill, slopes, percent grade, bank volume, loose volume, compacted volume, swell, shrink, and estimated truck loads. MATERIAL ESTIMATOR Estimate quantities and coverage for paint, tile, decking, fencing, studs, blocks, flooring, sheet goods, brick, gravel, and other construction materials. FEET, INCHES AND FRACTIONS Enter measurements the same way you use them on the jobsite. For example: 12 ft 6 3/8 in There is no need to convert measurements to decimals before calculating. Quickly work with: * Feet and inches * Fractions * Yards * Meters * Square measurements * Cubic measurements * Imperial and metric conversions SAVE YOUR CALCULATIONS Keep important calculations in History so you can return to them later. Your calculations stay organized and available when you need them. CHOOSE YOUR DEFAULT CALCULATOR Choose the calculator you use most from Tools and set it as your default. Your selection is saved so your preferred calculator is ready the next time you open the app. BUILT FOR CONSTRUCTION PROFESSIONALS HB Construction Calculator is designed for: * Contractors * Carpenters * Electricians * Plumbers * HVAC technicians * Concrete and masonry crews * Excavation and grading crews * Estimators * Construction professionals Whether you are measuring lumber, laying out stairs, calculating electrical loads, planning pipe runs, estimating concrete, sizing ductwork, grading a site, or preparing a material takeoff, HB Construction Calculator gives you practical tools directly on your phone. SIMPLE, PRIVATE AND READY FOR THE JOBSITE * Fully offline * No account required * No login * No paywall * No unnecessary setup Open the app and start calculating. HB Construction Calculator — from Handy Bro. Learn More: https://www.handybro.app Terms of Use: https://www.handybro.app/construction_calculator/terms Privacy Policy: https://www.handybro.app/construction_calculator/privacy