# calvin son

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**Content Feed**

Solved

Force and Motion 2

Two robots are pulling on an object in opposite directions. One robot pulls with a force of F1 Newtons and the other with a forc...

1 month ago

Solved

Back to basics 10 - Max Float

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

2 months ago

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Generate a NaN...on purpose

The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...

2 months ago

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Cycling — Critical Power

From Training and Racing with a Power Meter by Allen and Coggan: "A number of equations have been presented in the scientific...

2 months ago

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Free-time Equation

Given a 7-day week, an *_nc_* -number of *_tc_* -hour classes, *_ta_* -hours awake in a day, and *_tw_* -hours that you work in ...

2 months ago

Solved

How to get the additive inverse of a uint8.

Given x as a uint8 find the additive inverse y.

2 months ago

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Specific Element Count

Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

2 months ago

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Building matrices

If you have matrix A, create matrix B using matrix A as an "element" A = [1 2 3 4; 5 6 7 8...

2 months ago

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Error handling

If the input is a negative number, generate an error. Otherwise, return the number.

2 months ago

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The last non-zero digit of a factorial

For given positive integer n, what is the last non-zero digit of n!? Example: factorial(11) = 39916800 Last non-zero d...

2 months ago

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Approximation of Pi (vector inputs)

Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...

2 months ago

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Vector pop

Take |n| elements from the end of the vector |v| and return both the shorten vector |v| and the |n| elements in a separate vecto...

2 months ago

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Moving average (variable kernel length)

Find the moving average in a vector. The kernel length is a variable. For example x = 1:10 kernel_length = 2 would r...

2 months ago

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Please check the last row

We have data of matrix, that is input. That contains 2 or more rows and the last row should contain the average of each column,...

2 months ago

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Calculate the hypotenuse of a right triangle without using ^ and sqrt ()

Find out the hypotenuse of right triangle. Say a = 4, b = 3 then c = 5 Please don't use ^ and sqrt() function.

2 months ago

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Array ex-OR

There are in MATLAB logical functions such as _<http://www.mathworks.co.uk/help/matlab/ref/and.html and>,_ _<http://www.math...

2 months ago

Solved

Calculate cosine without cos(x)

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

2 months ago

Solved

Calculate sin(x) without sin(x)

Calculate y = sin(x) x = 0 -> y= 0 without the use of sin(x) or cos(x)

2 months ago

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Number of even divisors of a given number

Given a Number n, return the number of its even divisors without listing them. example: n=14 ; EvenDivisors={2,14} ; y=2 ...

2 months ago

Solved

Raise a polynomial to a power

In Matlab, polynomials are represented by a vector of coefficients. For example, the polynomial p=a*x^2 + b*x + c is represente...

2 months ago

Solved

Airline Ticket Mod7 Checksum

There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

2 months ago

Solved

Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.

Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

2 months ago

Solved

Pentagonal Numbers

Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

2 months ago

Solved

Hard limit function

Classify x data as if x>=0 then y=1 if x<0 then y=0 Example x = [ -2 -1 0 1 2] y = [ 0 0 1 1 1]

2 months ago