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Benjamin Alvarez


Active since 2015

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

9 years ago

Solved


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

9 years ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

9 years ago

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

9 years ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

9 years ago

Solved


Fahrenheit to Celsius using multiple statements
Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...

9 years ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

9 years ago

Solved


Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

9 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...

9 years ago

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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:...

9 years ago

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

9 years ago

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Is my wife right?
Regardless of input, output the string 'yes'.

9 years ago

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

9 years ago

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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 ...

9 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

9 years ago

Question


Simulink SDI interface error (safeTransaction)
Hi, I am in trouble with the SDI interface : I aborted Matlab while it was saving a SDI session because it was not responding...

9 years ago | 0 answers | 3

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Answered
How can i read a csv-file with strings and integers into script and then write new values in some cells at the end
Hi, You can do it directly using xlsread command : [numeric, text, matrix] = xlsread('Test.csv'); You can do some computa...

9 years ago | 0

Question


Improving Simulink/Simscape performance
Hello, I am working with huge simscape models and start to experience memory trouble. I am working with Windows 7 32bits ver...

9 years ago | 1 answer | 0

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Question


How can I define electrical label like "+12V" in simscape
Hello, I am currently modeling electrical boards with Simscape and I would like to know if it is possible to create some ele...

9 years ago | 2 answers | 0

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