How to extract the value of the middle point of the graph without data.

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haeyeon JI
haeyeon JI 2020-8-16
回答： KSSV 2020-8-16
I drew a graph with a variable.
x =[5 2 1 0.5 0.4 0.2 0.1 0.05 0.04 0.02 0.01]
y=[0.020483611 0.140590007 0.551269003 1.46595408 1.896853378 3.587587888 5.525292461 8.535573537 8.227987381 3.137199997 3.142586194]
or example, when x= 3 and 4, which is a value between x=5 and 2,
how can I get the Corresponding y value?
How to extract the value of the middle point of the graph without data...

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KSSV
KSSV 2020-8-16
Read about interp1.
xi = [2 3 4 5] ;
yi = interp1(x,y,xi)

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