Online calculator to be used for adding, subtracting, or multiplying two matricies. A little bit of factual explanation is given.
Type of Material:
Simulation
An interactive tool to manipulate two matrices, compute their sum, difference, multiplication by a scalar, matrix multiplication.
Recommended Uses:
This calculator would be great for use in individual study, homework, group activities, or in-class demonstrations.
It is used as a tool to compute online basic operations on matrices without the use of installation of a full fledged CAS. It is pretty similar in that respect to WIMS matrix calculator. Since basic technical explanations are given, it can be used as well as a teaching tool.
Technical Requirements:
Any browser.
Identify Major Learning Goals:
This calculator can be used to perform basic matrix calculations for matrices of dimensions up to 10x10.
Students can learn about matrix operations, compute basic operations, and manipulate matrices interactively.
Target Student Population:
High School, College General Ed, College Lower Division, Linear Algebra students
Prerequisite Knowledge or Skills:
College algebra, linear algebra, or graph theory (adjacency matrices) or probability theory (Markov chains).
Content Quality
Rating:
Strengths:
This matrix calculator allows users to quickly perform simple computations such as matrix addition, subtraction, and multiplication matrices with size up to 10x10. It will also compute the transpose, determinant, and inverse of a matrix.
Concerns:
No copy-paste from the outside world, just numbers that you have to enter in cells one by one. No formal parameters.
Potential Effectiveness as a Teaching Tool
Rating:
Strengths:
This site is free to use and could be very helpful to students in that it would allow them to check solutions to homework/practice problems. It could be easily incorporated into in-class demonstrations or group activities. A brief description of basic matrix operations is also included.
This site is free to use and could be very helpful to students in that it would allow them to check solutions to homework/practice problems. It could be easily incorporated into in-class demonstrations or group activities. A brief description of basic matrix operations is also included. Some explanations are given.
Concerns:
It doesn't develop conceptual undertanding: you simply see the result.
Ease of Use for Both Students and Faculty
Rating:
Strengths:
This simulated calculator is free and easy to use. The display is simple and easy to navigate. The use of color in matrices when demonstrating operations such as matrix multiplication or finding the determinant is helpful.
You type in numbers, you click on the button for the desired operation, and the result is given and can be used in a following calculation.
Concerns:
Although this calculator is intuitive to use, there are no included instructions.
There is no copy-paste from the outside world, just numbers that you have to enter in cells one by one. There are no formal parameters.
Creative Commons:
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