Page 118 - Numerical Analysis Using MATLAB and Excel

Solutions to End−of−Chapter Exercises

Check with MATLAB:

4*(cos(pi/6)+sin(pi/6)*j)/(5*(cos(−5*pi/6)+sin(−5*pi/6)*j)),...
exp(pi*j/3)/(−2*exp(−pi*j/6))
ans =

-0.8000 - 0.0000i

ans =
-0.0000 - 0.5000i
6.

–
–
9j4 9 – j4 – 5 jx – 45 j9x + j20 – 4x – 4x – 45 – 9x + 20
–
⋅
------------------ = ------------------ -------------- = --------------------------------------------------- = ---------------------- + j-----------------------
–
2
2
– 5 + jx – 5 + jx – 5 jx 5 + x 2 x + 25 x + 25
2

Numerical Analysis Using MATLAB® and Excel®, Third Edition 3−31
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