# Dan Lecoutre

Last seen: 1 year ago Active since 2020

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Plotting a horizontal line on a scatter graph in MATLAB
How do I plot a dashed horizontal straight line of y=20?

1 year ago | 1 answer | 0

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Question

Plotting a scatter graph with a categorical X axis
I have a scatter graph as shown above but I want to alter the x axis so that I can have a category for every jump in 10. So ba...

1 year ago | 1 answer | 0

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Question

How to sum particular values on the y axis
I wish to sum the y axis values for the frequencies between 300Hz to 1000Hz, how do I do this?

1 year ago | 1 answer | 0

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Question

Whats wrong with my code?
I'm using the 10x2 matrix sem to indicate different sections of a time signal that I am computing the fft of. There is 10 sect...

1 year ago | 1 answer | 0

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Question

Problems with signal processing
I have a signal as shown here: The x axis is just the sample number and the y is the ampltiude of the signal in volts. There...

1 year ago | 1 answer | 0

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Solved

Return area of square
Side of square=input=a Area=output=b

3 years ago

Solved

Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

3 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 ...

3 years ago

Solved

Given a and b, return the sum a+b in c.

3 years ago

Solved

Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

3 years ago

Solved

Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.&#8519;^(-&lambda;t)*cos(2πft)| where |A|, |&lambda;|, and |f| ...

3 years ago

Solved

Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x&#8321;_ + _x&#8322;_ = 2 _x&#8321;...

3 years ago

Solved

Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

3 years ago

Solved

Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

3 years ago

Solved

Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

3 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

3 years ago