Some Simple Quadrature Formulas Left/Middle/Right Rectangle Rule 1=∫fx)dk≈fab-a) 1=∫fk*fab-a 1=fx)dk≈fbb-a) ■Trapezoidal Rule 1-few22Ua+fSome Simple Quadrature Formulas ◼ Left/Middle/Right Rectangle Rule ◼ Trapezoidal Rule ( ) ( )( ) ( ) ( )( ) 2 ( ) ( )( ) b a b a b a I f x dx f a b a a b I f x dx f b a I f x dx f b b a =  − + =  − =  −    ( ) [ ( ) ( )] 2 b a b a I f x dx f a f b − =  + 