Why does matlab not evaluate equations properly?
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I'm trying to evaulate taylor series at x = 6.42855, however with my equation it does not evaluate it at that point and just outputs the taylor series. What should i do to fix it? Anyone able to write a better code for this?
1 个评论
Balaji Udayagiri
2022-6-22
Hi Lin Wu,
As per my understanding, you want to evaluate the Taylor expansion at a particular point.
Here is how you can modify your code:
clearvars
clc
syms x
f = log(0.7*x+0.5);
x0 = 4.2857;
t0 = taylor(f,x,x0,'Order',2);
h = subs(t0,x,6.42855);
采纳的回答
syms x
f=log(.7*x+.5);
x0=4.2857;
t=taylor(f,x,x0,'Order',2);
a= double(subs(t,6.42855))
更多回答（1 个）
syms x
f = log(0.7*x+0.5);
x_0 = 4.2857;
t0 = taylor(f,x,x_0,'Order',2);
h = matlabFunction(t0);
h(6.42855)
log(0.7*6.42855+0.5)
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