ex5_20.m

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global kk; kk=0; 
format long; y=quad('myerrf',-8,8), kk

kk=0; y=quad('myerrf',-15,15), kk

f=inline('1/sqrt(2*pi)*exp(-x.^2/2)','x'), 
y=quad(f,-8,8), 

global kk; kk=0; y=quad8('myerrf',-15,15), kk

kk=0; y=quad8('myerrf',-8,8), kk