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Is this triangle right-angled?

Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

2 years ago

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Triangle sequence

A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

2 years ago

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Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

2 years ago

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Area of an equilateral triangle

Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...

2 years ago

Solved

Side of an equilateral triangle

If an equilateral triangle has area A, then what is the length of each of its sides, x? <<https://i.imgur.com/jlZDHhq.png>> ...

2 years ago

Solved

Side of a rhombus

If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<https://imgur.com/x6hT6mm.png>> ...

2 years ago

Answered

Undefined function 'isnan' for input arguments of type 'Nodes2'

For reference, a related question that shows more of the actual classes in question: https://www.mathworks.com/matlabcentral/ans...

Undefined function 'isnan' for input arguments of type 'Nodes2'

For reference, a related question that shows more of the actual classes in question: https://www.mathworks.com/matlabcentral/ans...

2 years ago | 1

Answered

appdesigner, choosing from dropdown different functions

I suspect your problem is that your conditional is flawed. To test, put in an "else" to check if your conditional is not being m...

appdesigner, choosing from dropdown different functions

I suspect your problem is that your conditional is flawed. To test, put in an "else" to check if your conditional is not being m...

2 years ago | 0

| accepted

Solved

Area of an Isoceles Triangle

An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<https://imgur...

2 years ago

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Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

2 years ago

Answered

Shift a curve in logarithmic scale

shifting in log scale is actually a multiplication, not an addition - is that what you need?

Shift a curve in logarithmic scale

shifting in log scale is actually a multiplication, not an addition - is that what you need?

2 years ago | 0

| accepted

Solved

Vector creation

Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

2 years ago

Solved

Doubling elements in a vector

Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

2 years ago

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Flip the vector from right to left

Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

2 years ago

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Whether the input is vector?

Given the input x, return 1 if x is vector or else 0.

2 years ago

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Get the length of a given vector

Given a vector x, the output y should equal the length of x.

2 years ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

2 years ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 years ago

Answered

How to trasform from cell to matrix and transpose from horizontal to vertical at the same time?

Just change your cat dimension to 1, then transpose later. Data.my_cell = {rand(1,101);rand(1,101);rand(1,101)} m = cat(1,Data...

How to trasform from cell to matrix and transpose from horizontal to vertical at the same time?

Just change your cat dimension to 1, then transpose later. Data.my_cell = {rand(1,101);rand(1,101);rand(1,101)} m = cat(1,Data...

2 years ago | 1

Answered

Can I change my UIFigure size while maintaining location of elements in figure?

I think you may be able to achieve what you want using the uigridlayout, see if this example works on 2019b (I'm on 2022a). The...

Can I change my UIFigure size while maintaining location of elements in figure?

I think you may be able to achieve what you want using the uigridlayout, see if this example works on 2019b (I'm on 2022a). The...

2 years ago | 0

| accepted

Answered

Heatmap is too Thin in Figure

imshow() asserts 1:1 aspect ratio to show the image, so you can manually change the axes Position property after setting DataAsp...

Heatmap is too Thin in Figure

imshow() asserts 1:1 aspect ratio to show the image, so you can manually change the axes Position property after setting DataAsp...

2 years ago | 0

Answered

Implementing Crank Nicholson in spherical setting

I believe this should be the right formulation for CN (taking a few liberties interpreting your problem). If you want speed, pr...

Implementing Crank Nicholson in spherical setting

I believe this should be the right formulation for CN (taking a few liberties interpreting your problem). If you want speed, pr...

2 years ago | 2

Answered

Implementing Crank Nicholson in spherical setting

For one thing, your boundary conditions (as developed on your pdf) don't look right. At r=0, you can just directly use Eq 8 LHS...

Implementing Crank Nicholson in spherical setting

For one thing, your boundary conditions (as developed on your pdf) don't look right. At r=0, you can just directly use Eq 8 LHS...

2 years ago | 1

Question

Built in look-up style interpolation of timetables for non-numeric data?

Is there no built-in function similar to interp1 for numeric data, that can operate on timetables with arbitrary data types? So...

2 years ago | 1 answer | 0

Answered

For loop to carry value down depending on another matrix value

In your example, there is a "delay" by 1 row when your switch from 0 to -1 occurs, so the following answer is not exactly produc...

For loop to carry value down depending on another matrix value

In your example, there is a "delay" by 1 row when your switch from 0 to -1 occurs, so the following answer is not exactly produc...

2 years ago | 0

| accepted

Answered

There used to be a function RefineMesh in Matlab used in solving ODE's, but it is now used for PDE's and isn't the same function. Is there a new function for the old purpose?

The workflow above only re-evaluates the "static" solution of ode45 at more data points by an interpolation scheme consistent wi...

There used to be a function RefineMesh in Matlab used in solving ODE's, but it is now used for PDE's and isn't the same function. Is there a new function for the old purpose?

The workflow above only re-evaluates the "static" solution of ode45 at more data points by an interpolation scheme consistent wi...

2 years ago | 0