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updated detail on poly

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Giovanni Di Grezia
2014-11-26 13:01:22 +01:00
parent d13571d29e
commit aa5fda0dfd
1 changed files with 3 additions and 3 deletions
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6
samples/plot,functions,polyval.m
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@@ -1,10 +1,10 @@
fplot( @(x) x^2 * cos(x), [-4 4],'r*' ) fplot( @(x) x^2 * cos(x), [-4 4],'r*' )
hold on hold on
p= [1,2,3,4,5] p= [1,2,3,4,5] //coefficinti del polinomio
x=1:0.1:10 x=1:0.1:10 oppure x=linspace(-5,5,100) 100 punti tra -5,5
y=polyval(p,x) y=polyval(p,x)
plot(x,y) plot(x,y)
polyfit(x,y,n) // n <EFBFBD> il grado p= polyfit(x,y,n) // n <EFBFBD> il grado, 1 in meno dei punti