列出求解下列初值問(wèn)題的歐拉格式 (1)y,=x2-y2(0≤x≤0.4),y(0)=1,取h=0.2 (2)(1≤x≤1.2),y(0)=1,取h=0.2
設(shè)f(x)=sinx,分別取步長(zhǎng)h=0.1,0.01,0.001,用中點(diǎn)公式計(jì)算的值,令中間數(shù)據(jù)保留小數(shù)點(diǎn)后第6位。
設(shè)已給出的數(shù)據(jù)表 試用三點(diǎn)公式計(jì)算的值,并估計(jì)誤差。
已知x0=1.0,x1=1.1,x2=1.2,h=x1-x0=x2-x1=0.1,用三點(diǎn)公式計(jì)算微商: