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Showing 1651–1680 of 1709 reference entries
Grouping and equal-priority arithmetic evaluation.
MethodMathematics & logicScientific notationA normalized decimal coefficient with an integer power of ten.
DefinitionMathematics & logicDirect and inverse proportionConstant-ratio and constant-product relationships.
DefinitionMathematics & logicAngles, intersecting lines and parallel linesEuclidean line-angle relationships.
Mathematical statementMathematics & logicAngle sums of polygonsInterior and exterior angle sums for convex polygons.
Mathematical statementMathematics & logicSine and cosine rules for trianglesSide-angle laws beyond right triangles.
Mathematical statementMathematics & logicPigeonhole principleA finite assignment forces a shared output when inputs outnumber outputs.
Mathematical statementMathematics & logicTotal probability and event Bayes' theoremFinite-partition probabilities and reversal of event conditioning.
Mathematical statementMathematics & logicLeast common multipleThe smallest positive common multiple of positive integers.
DefinitionMathematics & logicPolynomials and degreeFinite sums of nonnegative integer powers with fixed coefficients.
DefinitionMathematics & logicDecimal rounding and significant digitsDecimal places, retained significant digits and rounding ties.
MethodMathematics & logicCone and sphere volume and surface areaEuclidean cone and sphere mensuration.
Mathematical statementMathematics & logicCircle angles and tangentsInscribed angles and radius-tangent perpendicularity.
Mathematical statementMathematics & logicStraight-line equationsSlope-intercept form of a nonvertical line.
Mathematical statementInformationProgram names, bindings and assignmentNames refer to values through an execution environment.
DefinitionInformationSequence, conditionals and loopsSelection and repetition determine which program statements execute.
DefinitionInformationFunction definitions, parameters and callsA call connects arguments with local parameter bindings.
DefinitionInformationRecursive procedures and base casesSelf-calls reduce a problem toward a terminating case.
MethodInformationData types and checkingTypes describe values and permitted operations; checks occur at different stages.
DefinitionInformationPrograms and processesAn operating system manages a program's execution as a process.
DefinitionInformationVirtual address spacesA process's address view is distinct from physical memory placement.
DefinitionInformationFiles, directories and persistenceFile contents, directory names and durable storage have distinct roles.
DefinitionMathematics & logicPolygon perimeter and parallel-base areasBoundary length and enclosed area measure different properties of a plane shape.
MethodPhysics · ChemistryOpen, closed, isolated and adiabatic systemsA system boundary determines which transfers count as exchanges.
DefinitionPhysicsHypothesis, law and scientific theoryThese terms name different scientific roles rather than steps in a promotion ladder.
DefinitionPhysicsConduction, convection and thermal radiationHeat can be transferred by microscopic interactions, fluid motion or electromagnetic radiation.
DefinitionPhysicsConvective heat-transfer coefficientThe coefficient h represents a specified surface–fluid transfer situation.
ModelPhysicsLumped thermal relaxation and Biot criterionAn approximately uniform-temperature body can have an exponential thermal response.
ModelPhysicsNet radiation exchange and gray surfacesEmission and absorption must both enter a net radiative heat balance.
ModelMeasurement · PhysicsSolid angle and steradianA solid angle measures a cone of directions rather than a plane rotation.
Definition