Unable to compute a taylor expansion

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Jorge Sousa
Jorge Sousa 2021-11-15
评论： Jorge Sousa 2021-11-15
syms x
f = log(x);
T1 = taylor(f,x,'order',1);
T2 = taylor(f, x, 'Order', 2);
T4 = taylor(f, x, 'Order', 4);
T8 = taylor(f, x, 'Order', 8);
fplot([T1 T2 T4 T8 f])
I did this and got "Error using symengine Unable to compute a Taylor expansion." and "Error in sym/taylor (line 128) tSym = mupadmex('symobj::taylor',f.s,x.s,a.s,options);"

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采纳的回答

KSSV
KSSV 2021-11-15
syms x
f = log(x);
T1 = taylor(f,x,'ExpansionPoint',1,'order',1);
T2 = taylor(f,x,'ExpansionPoint',1,'order',2);
T4 = taylor(f,x,'ExpansionPoint',1,'order',4);
T8 = taylor(f,x,'ExpansionPoint',1,'order',8);
fplot([T1 T2 T4 T8 f])

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