MATLAB: Square & Cube of 1,2,3

In summary, to obtain the square and cube of the numbers 1, 2 and 3, a vector [1 2 3] is created. Another vector [2 3] is also created. These two vectors are used as inputs for the meshgrid function, which produces two matrices with 2 rows and 3 columns each. The first matrix contains the elements of the first vector as rows, while the second matrix contains the elements of the second vector as columns. The operator .^ is then used to raise each element of the resulting matrix to the desired power, resulting in a final matrix with the desired answers.
  • #1
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We want to know the square and the cube of each of the following numbers: 1, 2 and 3. You can have MATLAB obtain these results as follows.
Create a vector [1 2 3] . Create a vector [2 3]. Use these two vectors as inputs to the meshgrid function (with the 3-element vector as the first argument), which will produce two matrices. Each of these matrices will have 2 rows and 3 columns. The first matrix will have rows that equal the first vector. The second matrix will have columns with the elements of the second vector. Use the operator .^ (element-by-element raising to a power) to generate a matrix with the desired answers. (This final matrix should have 2 rows and 3 columns.)

hi (Wave)
so here's what i did so far
Code:
x=[1 2 3];
y=[2 3];
[x,y]=meshgrid(x,y)

im lost on what to do next :eek:
 
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  • #2
So you have created two matrices and have two original vectors.

Have you tried to do what the exercise told you to use? Make a couple of combinations and see how .^ work and you will soon see the answer, that is, do what your teacher want you to do :)
 

1. What is MATLAB and how is it used for calculating squares and cubes?

MATLAB is a programming language and software environment commonly used in scientific and engineering fields. It is used for numerical computing and data visualization, making it a powerful tool for solving mathematical problems. To calculate squares and cubes in MATLAB, you can use the built-in functions "power" or ".^".

2. How do I calculate the square of a number in MATLAB?

To calculate the square of a number in MATLAB, you can use the "power" function. For example, if you want to find the square of 3, you can type "power(3,2)" or simply "3^2" in the command window. This will return the value 9.

3. What is the difference between using "power" and ".^" to calculate squares and cubes in MATLAB?

The "power" function in MATLAB raises a number to a specific power, while the ".^" operator raises each element in a matrix or array to a specific power. For example, using "power([1 2 3],2)" will return a matrix with the values 1, 4, and 9, while using "[1 2 3].^2" will return a matrix with the values 1, 4, and 9.

4. Can I use MATLAB to calculate the cube of a number?

Yes, you can use MATLAB to calculate the cube of a number. Similar to calculating squares, you can use the "power" function or the ".^" operator to raise a number to the power of 3. For example, "power(4,3)" or "4^3" will return the value 64.

5. Is there a limit to the number of values I can calculate the squares and cubes of in MATLAB?

No, there is no limit to the number of values you can calculate the squares and cubes of in MATLAB. You can input a single value or a large array of values and the software will efficiently calculate the squares and cubes of each element.

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