Mathematics
Significant figures
Significant figures: use first measured number, second measured number (operations only), operation. Review the formula, worked example and calculation steps.
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Browse calculators 337–384 of 522. Open a calculator for its inputs, formula, worked example and solution steps.
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Mathematics
Percentage difference
Percentage difference: use first value, second value. Review the formula, worked example and calculation steps.
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Doubling time
Doubling time: use growth per period. Review the formula, worked example and calculation steps.
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Law of cosines
Law of cosines: use side a, side b, included angle. Review the formula, worked example and calculation steps.
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Law of sines
Law of sines: use known side a, opposite angle a, target angle b. Review the formula, worked example and calculation steps.
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Ellipse area
Ellipse area: use semimajor radius, semiminor radius. Review the formula, worked example and calculation steps.
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Ellipse perimeter
Ellipse perimeter: use first semiaxis, second semiaxis. Review the formula, worked example and calculation steps.
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Regular polygon area
Regular polygon area: use number of sides, side length. Review the formula, worked example and calculation steps.
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Polygon interior angle
Polygon interior angle: use number of sides. Review the formula, worked example and calculation steps.
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Annulus area
Annulus area: use outer radius, inner radius. Review the formula, worked example and calculation steps.
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Triangle area · two sides & angle
Triangle area · two sides & angle: use side a, side b, included angle. Review the formula, worked example and calculation steps.
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Triangular prism volume
Triangular prism volume: use triangle base, triangle perpendicular height, prism length. Review the formula, worked example and calculation steps.
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Conical frustum volume
Conical frustum volume: use first radius, second radius, perpendicular height. Review the formula, worked example and calculation steps.
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Torus volume
Torus volume: use major radius to tube centre, tube radius. Review the formula, worked example and calculation steps.
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Spherical cap volume
Spherical cap volume: use sphere radius, cap height. Review the formula, worked example and calculation steps.
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3D distance
3D distance: use first x, first y, first z. Review the formula, worked example and calculation steps.
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Vector cross product
Vector cross product: use first vector · 3 components, second vector · 3 components. Review the formula, worked example and calculation steps.
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Mode
Mode: use observations. Review the formula, worked example and calculation steps.
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Standard error of the mean
Standard error of the mean: use observations. Review the formula, worked example and calculation steps.
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Pearson correlation
Pearson correlation: use x observations, y observations. Review the formula, worked example and calculation steps.
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Linear regression
Linear regression: use x observations, y observations, x value for prediction. Review the formula, worked example and calculation steps.
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Covariance
Covariance: use x observations, y observations, estimator. Review the formula, worked example and calculation steps.
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Geometric mean
Geometric mean: use observations. Review the formula, worked example and calculation steps.
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Harmonic mean
Harmonic mean: use observations. Review the formula, worked example and calculation steps.
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Coefficient of variation
Coefficient of variation: use observations. Review the formula, worked example and calculation steps.
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Weighted mean · data lists
Weighted mean · data lists: use values, weights. Review the formula, worked example and calculation steps.
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Percentile
Percentile: use observations, percentile. Review the formula, worked example and calculation steps.
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Interquartile range
Interquartile range: use observations. Review the formula, worked example and calculation steps.
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Outlier fences
Outlier fences: use observations. Review the formula, worked example and calculation steps.
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Expected value
Expected value: use outcomes, probabilities. Review the formula, worked example and calculation steps.
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Normal distribution
Normal distribution: use observation, mean, standard deviation. Review the formula, worked example and calculation steps.
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p-value · normal & Student t
p-value · normal & Student t: use test statistic, null distribution, degrees of freedom (t only). Review the formula, worked example and calculation steps.
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One-sample z test
One-sample z test: use sample mean, null mean, known population standard deviation. Review the formula, worked example and calculation steps.
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Poisson probability
Poisson probability: use expected count λ, observed count k. Review the formula, worked example and calculation steps.
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Exponential distribution
Exponential distribution: use rate λ, elapsed quantity. Review the formula, worked example and calculation steps.
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Uniform distribution
Uniform distribution: use lower bound, upper bound, observation. Review the formula, worked example and calculation steps.
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Relative frequency
Relative frequency: use count for the category, total observations. Review the formula, worked example and calculation steps.
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Salary to hourly
Salary to hourly: use salary amount, salary period, working hours per week. Review the formula, worked example and calculation steps.
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Markup
Markup: use unit cost, selling price. Review the formula, worked example and calculation steps.
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Price from markup
Price from markup: use unit cost, markup. Review the formula, worked example and calculation steps.
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Break-even point
Break-even point: use fixed costs, selling price per unit, variable cost per unit. Review the formula, worked example and calculation steps.
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Compound annual growth rate
Compound annual growth rate: use starting value, ending value, years. Review the formula, worked example and calculation steps.
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Rule of 72
Rule of 72: use annual growth rate. Review the formula, worked example and calculation steps.
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Gross profit
Gross profit: use revenue, cost of goods sold. Review the formula, worked example and calculation steps.
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Net profit
Net profit: use revenue, total expenses. Review the formula, worked example and calculation steps.
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Operating margin
Operating margin: use operating income, revenue. Review the formula, worked example and calculation steps.
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Return on assets
Return on assets: use net income, average total assets. Review the formula, worked example and calculation steps.
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Return on equity
Return on equity: use net income, average shareholder equity. Review the formula, worked example and calculation steps.
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