# Austin Senerchia

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**Content Feed**

Solved

Matlab Basics II - Extract last 3 elements of a vector

Let x be a vector of unknown length, we are always interested in the last 3 numbers in the vector, write a function that gives t...

6 months ago

Solved

Calculate cosine without cos(x)

Solve cos(x). The use of the function cos() and sin() is not allowed.

6 months ago

Solved

Splitting Circle

Consider a circle which has been divided into three concentric circles as depicted in the figure below The ratio betwen the a...

6 months ago

Solved

Radiation Heat Transfer — View Factors (1)

View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...

6 months ago

Solved

How to calculate log?

There is a log that have base 5. How to calculate? log5(x)?

7 months ago

Solved

Create tangent function out of sine function only

Please don't use cosine and tangent functions

7 months ago

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Convert Cylindrical Cooridinates into Spherical Coordinate

For Cylindrical coordinate point, rho, fie (degrees) and z. Convert these points in Spherical Cooridinate System and save result...

7 months ago

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Vector indexing: lower than mean

Find all values in a vector lower than the mean of the vector

7 months ago

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Reverse CHECKBOX MATRIX with 69

Create a reverse checkbox matrix with '69'. Where the size is the input and output will be a square checkbox matrix. Exa...

7 months ago

Solved

Calculate compression ratio of engine

Calculate compression ratio of engine given compression volume of cylinder(Vc), piston stroke(s) and valve diameter(d)

8 months ago

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Calculate Engine Power

Calculate Engine Power (P) in kW given the values of Torque(M) in Nm and Engine Speed(n) in rpm

8 months ago

Solved

Electrical Diode Current Calculation

In engineering, there is not always a single equation that describes a phenomenon accurately enough to be applied in all instanc...

8 months ago

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An Ohm's Law Calculator

*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

8 months ago

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First N Perfect Squares

*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

8 months ago

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Area of a Square

Given the length x of the side of a regular square, find the area of the square, A.

8 months ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

9 months ago

Solved

Draw matrix 'Swiss flag'( Euro 2020)

Draw a x-by-x matrix 'Swiss flag' using '0' and '1'.(x is odd and bigger than 4) Example x=5 ...

9 months ago

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Draw a x-by-x matrix 'Denmark flag'(Euro(2020)

Draw a x-by-x matrix 'Denmark flag' using '4' and '1'.(x is odd and bigger than 4) Number 4: Caption S.Kjær and number 1: K.S...

9 months ago

Solved

Draw 'P' !!!

Draw a n by n matrix 'P' using 0s and 1s. (n is odd and greater than 4) if n=5 , then the output will be [1 1 1 1 1 1 0 0 0...

9 months ago

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...

10 months ago

Solved

Given area find sides

In a right angle triangle given area 'A' one arm=x, another arm=2x then find the value of x. For example, area A=400 then ...

10 months ago

Solved

Given a matrix, swap the 2nd & 3rd columns

If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4]; then the result is ans = 1 3 2 4 1 3 2...

10 months ago