High School · Page 2
Explore inequalities, quadratic extrema, sine/cosine triangle rules, polynomial derivatives and signed definite integrals with worked examples.
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Business
Geometry
Height from Shadows Calculator
Learning & Education · Middle School · High School · Construction & DIYEstimate an object’s height from its shadow and a reference object measured at the same time. Mix length units and see the similar-triangle proportion.
Open calculator ↗Coordinate Transformation Calculator
Learning & Education · Middle School · High SchoolReflect, rotate or translate a point in the coordinate plane. Keep exact fractional coordinates and compare the original point with its image on equal-scale axes.
Open calculator ↗Circle and Line Intersection Calculator
Learning & Education · High SchoolFind whether a circle and an infinite line meet in zero, one or two points. Compare the center-to-line distance, projection foot and intersection coordinates with a diagram.
Open calculator ↗Mathematics
Area Between Curves and Rotation Volume
Learning & Education · High School · Design & Drawing · Construction & DIYCalculate geometric area between two quadratic profiles or washer volume around the x-axis. Split crossing curves for area and validate inner and outer radii for rotation.
Open calculator ↗Absolute Value Equation and Inequality Calculator
Learning & Education · Middle School · High SchoolSolve |ax+b|=c or an absolute-value inequality. See exact fractional boundaries, the inside or outside solution and a number line with endpoint rules.
Open calculator ↗Set Operations and Venn Diagram
Learning & Education · Middle School · High SchoolFind the union, intersection, difference, symmetric difference or complement of two finite sets. Compare the element lists, counts and highlighted Venn regions.
Open calculator ↗Polynomial Long Division Calculator
Learning & Education · High SchoolDivide one polynomial by another and follow each subtraction. See the exact quotient and remainder, the reconstruction identity and a substitution check.
Open calculator ↗Order of Operations Calculator
Learning & Education · Middle School · High SchoolEvaluate a numeric expression with parentheses, powers and the four arithmetic operations. Follow the actual evaluation order and keep an exact fraction answer.
Open calculator ↗Physics
Power and Efficiency Calculator
Learning & Education · Middle School · High School · Science & LabCompare input energy with useful output over the same time. Find average input/output power, energy loss and conversion efficiency.
Open calculator ↗Reflection and Refraction Calculator
Learning & Education · Middle School · High School · Science & LabFind reflected and refracted ray directions from incidence angle and two refractive indices. Detect total internal reflection and show the critical angle.
Open calculator ↗Echo Distance Calculator
Learning & Education · Middle School · High School · Science & LabFind one-way reflector distance, echo return time or sound speed. Keep the measured round trip separate from the distance to the reflecting surface.
Open calculator ↗Hooke’s Law Calculator
Learning & Education · Middle School · High School · Science & LabFind applied spring force, extension or spring constant in the elastic range. Distinguish applied and restoring forces and calculate stored elastic energy.
Open calculator ↗Lever Balance Calculator
Learning & Education · Middle School · High School · Science & LabFind the effort force needed to balance a load about a fulcrum. Compare perpendicular moment arms, torque and ideal mechanical advantage.
Open calculator ↗Pulley Mechanical Advantage Calculator
Learning & Education · Middle School · High School · Science & LabEstimate effort and rope travel from the number of load-supporting rope segments. Compare ideal geometry with an entered overall lifting efficiency.
Open calculator ↗Buoyancy Calculator
Learning & Education · Middle School · High School · Science & LabCompare an object’s weight with displaced-fluid buoyancy. Enter displacement directly or estimate whether a uniform object floats, sinks or is neutrally buoyant.
Open calculator ↗Hydrostatic Pressure Calculator
Learning & Education · Middle School · High School · Science & LabFind the pressure increase with fluid depth, absolute pressure and the incremental force on a horizontal patch. Keep surface pressure separate from gauge pressure.
Open calculator ↗Thin Lens Calculator
Learning & Education · High School · Science & Lab · Design & DrawingFind image distance and signed magnification for a thin lens and a real object. Distinguish real, virtual and focal-plane cases with a lens layout.
Open calculator ↗Force and Friction Calculator
Learning & Education · High School · Science & Lab · Construction & DIYResolve two forces into a resultant, or check whether a block can stay at rest on an incline. Inspect components, friction limits and acceleration after slipping begins.
Open calculator ↗Statistics
Mark–Recapture Population Calculator
Learning & Education · Middle School · High SchoolEstimate a closed population from two samples and their marked overlap. Compare the school proportion estimate with the Chapman correction and the observed minimum.
Open calculator ↗Survey Population Estimate Calculator
Learning & Education · Middle School · High SchoolProject a sampled proportion to a known population. Compare the estimate with the logically possible count range and, for small sample fractions, a Wilson sampling interval.
Open calculator ↗Expected Value Calculator
Learning & Education · Middle School · High SchoolEnter discrete outcomes and their probabilities to calculate expected value, net expectation after a fixed cost and outcome spread.
Open calculator ↗Conditional Probability and Bayes Calculator
Learning & Education · High School · Science & LabUpdate an event probability after a positive or negative signal. See the base-rate effect, a four-outcome probability table and expected counts for quality-control scenarios.
Open calculator ↗Grouped Frequency Calculator
Learning & Education · Middle School · High SchoolBuild a frequency table from class intervals and counts. Find relative and cumulative frequencies, a midpoint mean estimate and a histogram that supports unequal class widths.
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