Cody

Problem 44948. Calculate a Damped Sinusoid

Solution 3862048

Submitted on 26 Nov 2020
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Test Suite

Test Status Code Input and Output
1   Fail
y_correct = [1.0000 0.7246 0.1554 -0.4232 -0.7524 -0.7118 -0.3583 0.1177 0.4912 0.6065]; y_test = damped_cos(0.5, 1, 10); assert( all ( abs(y_correct(:) - y_test(:)) < 1e-4 ) )

t = 0 0.1111 0.2222 0.3333 0.4444 0.5556 0.6667 0.7778 0.8889 1.0000 A = 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1

Error using * Incorrect dimensions for matrix multiplication. Check that the number of columns in the first matrix matches the number of rows in the second matrix. To perform elementwise multiplication, use '.*'. Error in damped_cos (line 6) y=A.*(exp(-lambda*t))*cos(2*pi*t*f) Error in Test1 (line 2) y_test = damped_cos(0.5, 1, 10);
2   Fail
y_correct = [1.0000 -3.4903 12.1825]; y_test = damped_cos(-0.5, 5, 3) assert( all ( abs(y_correct(:) - y_test(:)) < 1e-4 ) )

t = 0 2.5000 5.0000 A = 1 1 1 f = 1 1 1

Error using * Incorrect dimensions for matrix multiplication. Check that the number of columns in the first matrix matches the number of rows in the second matrix. To perform elementwise multiplication, use '.*'. Error in damped_cos (line 6) y=A.*(exp(-lambda*t))*cos(2*pi*t*f) Error in Test2 (line 2) y_test = damped_cos(-0.5, 5, 3)

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