blockblock designblock diagonal matrixblock diagramblock effectblock effectsblock matrixblock multiplicationblock pivotblock pivotingblock scanningblockingblocking hyperplane constraintblocking variablebloodblood pressureblowblowholeblueprintblunderbobbodybogieboilboilerbold face typebolster plateboltzmann constantboltzmann costantboltzmann equationboltzmann relationbolyai geometrybolzano weierstrass theorembondbond discountbonds payablebonnet mean value theorembonnet theorembonusbook of original entrybook valuebookkeepingbookkeeping systembooleanboolean algebraboolean equationboolean expressionboolean functionboolean latticeboolean logic