Cody

Problem 43625. Calculate roots of polynomial given as vector array.

Solution 1073244

Submitted on 4 Dec 2016 by Gyoung Deuk Kim
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Test Suite

Test Status Code Input and Output
1   Pass
x = [1 2 0 5 0 3]; y_correct = [-2.7267 + 0.0000i ;0.4784 + 1.0983i ;0.4784 - 1.0983i ;-0.1150 + 0.8680i ;-0.1150 - 0.8680i]; y=PolRoot(x) assert(abs(y(1)-y_correct(1))<10^(-4)) assert(abs(y(2)-y_correct(2))<10^(-4)) assert(abs(y(3)-y_correct(3))<10^(-4)) assert(abs(y(4)-y_correct(4))<10^(-4))

y = -2.7267 + 0.0000i 0.4784 + 1.0983i 0.4784 - 1.0983i -0.1150 + 0.8680i -0.1150 - 0.8680i y = -2.7267 + 0.0000i 0.4784 + 1.0983i 0.4784 - 1.0983i -0.1150 + 0.8680i -0.1150 - 0.8680i
2   Pass
x = [3 2 5 1 0 2]; y_correct = [-0.3205 + 1.2968i; -0.3205 - 1.2968i; -0.7915 + 0.0000i; 0.3829 + 0.5704i; 0.3829 - 0.5704i]; y=PolRoot(x) assert(abs(y(1)-y_correct(1))<10^(-4)) assert(abs(y(2)-y_correct(2))<10^(-4)) assert(abs(y(3)-y_correct(3))<10^(-4)) assert(abs(y(4)-y_correct(4))<10^(-4))

y = -0.3205 + 1.2968i -0.3205 - 1.2968i -0.7915 + 0.0000i 0.3829 + 0.5704i 0.3829 - 0.5704i

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