Fourier Cosine Series | Desmos

Expression 4: "a" Subscript, 0 , Baseline equals StartFraction, 2 Over "L" , EndFraction Start integral from 0 to "L" , end integral, "f" left parenthesis, "x" , right parenthesis "d" "x" equals 5.5 4 5 1 7 7 4 4 4 4 8

equals

5.5 4 5 1 7 7 4 4 4 4 8

4

Expression 5: "a" equals StartFraction, 2 Over "L" , EndFraction Start integral from 0 to "L" , end integral, "f" left parenthesis, "x" , right parenthesis cosine left parenthesis, StartFraction, "n" pi "x" Over "L" , EndFraction , right parenthesis "d" "x"

equals

negative 1.6 0 5 6 9 0 5 8 0 3 8

negative 0.5 0 4 1 0 2 9 7 6 0 5 8

negative 0.1 9 3 6 6 3 6 2 1 8 1 2

negative 0.1 0 6 8 3 8 0 6 0 0 9 7

negative 0.0 6 6 1 9 0 7 2 7 8 5 2

5

Expression 6: "L" equals 5

0

10

6

Expression 7: "y" equals StartFraction, "a" Subscript, 0 , Baseline Over 2 , EndFraction plus Start sum from "i" equals 1 to "k" , end sum, "a" left bracket, "i" , right bracket cosine left parenthesis, StartFraction, "i" pi "x" Over "L" , EndFraction , right parenthesis

7

Expression 8:

8

9

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