258 results for "matrix".

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• Matrix arithmetic 2
Ready to use
Exam (1 question)
Quiz involving arithmetic of matrices
• Matrix arithmetic 1
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Question

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• Write down the lexicographic parity check matrix and generator matrix for a Hamming code, which is the dual of a Simplex code, then determine if a given word is a codeword of the corresponding Simplex code.

• Matrices
Draft
Exam (5 questions)

Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.

rebelmaths

• Question

Multiplication of $2 \times 2$ matrices.

• Inverse of a matrix
Ready to use
Question
How To find the inverse of a matrix
• Question in Matrices

This question concerns the evaluation of the eigenvalues and corresponding eigenvectors of a 2x2 matrix.

• Question in How-tos
The matrix entry part in this question marks any symmetric matrix as correct, using a custom marking algorithm. A matrix is symmetric if it is equal to its transpose.
• Question

Addition, subtraction and multiplication of 2 x 2 matrices and multiplication by a scalar.

(Last three parts of original question removed.)

• Question in Archive

This question concerns the evaluation of the eigenvalues and corresponding eigenvectors of a 2x2 matrix.

• Question
Part of the tutorial to introduse students to MATLAB programming.
• Exam (5 questions)

Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.

• Exam (5 questions)

Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.

rebelmaths

• Exam (5 questions)

Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.

rebelmaths

• Question

Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix.

• Question

Multiplication of $2 \times 2$ matrices.

• Question

$A,\;B$ $2 \times 2$ matrices. Find eigenvalues and eigenvectors of both. Hence or otherwise, find $B^n$ for largish $n$.

• Question

Find the determinant of a $4 \times 4$ matrix.

• Question

Find the determinant of a $3 \times 3$ matrix.

• Question in Demos

No description given

• Question in Demos

Ask the student to find a matrix corresponding to a given rotation about the origin.

Then ask them to find the determinant. Their answer is marked against the matrix they gave, not just the correct one.

Finally, ask them to find the inverse of their matrix. Marking is against the matrix and determinant they gave.

• Question in How-tos

Demo question showing how to use the matrix maths functions in JavaScript.

• Question in How-tos

This question adds a CSS rule to hide the brackets around the matrix input.

• Question in How-tos

Some custom CSS restyles the matrix input so it looks like a fraction, with input boxes on top and bottom.

Ideally, there should be a fraction input part type, or an option for the number entry part to display a fraction input.

• Question in How-tos

A randomly generated list of numbers is shown to the student. They must tick every occurrence of the lowest number. The number of occurrences isn't always the same - sometimes the minimum is unique and sometimes it is repeated. The map function makes it easy to construct a marking matrix.

• Question in How-tos

The student has to compute $a^b$ and $b^a$, then decide which of the two is bigger.

This question shows how to set up a custom marking matrix for the "choose one from a list" part, based on values used elsewhere in the question. It could use adaptive marking to use the student's incorrect values for the comparison, but doesn't at the moment.

• Question in How-tos
This question shows how to make the correct answer to a "choose one from a list" part depend on randomised question variables, in a couple of ways. The first part uses JME expressions to define the marks available for each choice. The second part uses the "custom marking matrix" option.
• Write down a lexicographic parity check matrix for a Hamming code and correct two received codewords.

• Write down the lexicographic parity check matrix for a Hamming code, and correct two received codewords.

• Given a matrix in the field $\mathbb{Z}_n$. By reducing it to row-echelon form (or otherwise), find a basis for the row space of the matrix, as a list of vectors.