Practice Matrix Functions (3.2.2) - Array operations and Linear equations

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6 sample questions

Question 1.
What is the function to calculate the determinant of a matrix?
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It starts with 'd' and ends with 'et'.
Question 2.
What does the inv() function do?
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It 'inverts' something.
3Question 3.
What does the det function compute?
- Inverse of a matrix
- Eigenvalues
- Determinant
- Matrix multiplication
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Think about what 'det' stands for.
4Question 4.
True or False: The rank of a matrix is the same as the number of rows.
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Consider if all rows can contribute independently.
Question 5.
Given matrix A = [2 3; 1 4], compute its determinant and explain its significance.
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Use the formula for the determinant of a 2x2 matrix.
Question 6.
Consider a matrix B = [1 2 3; 0 0 0; 4 5 6]. What is its rank and why?
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Look at how many rows can contribute unique information.

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