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Tom Braylovsky


Last seen: 2 years ago |  Active since 2020

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How to find coefficient matrix?
Hello everyone, I need to find a coefficient matrix called 'A'. I heve vector 'Re' and a result vector 'f'. Bouth vectors are ...

2 years ago | 1 answer | 0

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answer

Question


Hello, I have two vectors (1X1510) that make up a graph. How can i find when the graph slop aims to zero?
Hello, I have two vectors "A" and "B", each (1X1510) that make up a graph together: A (B) How can i find when the graph slop a...

2 years ago | 1 answer | 0

1

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Solved


Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

3 years ago

Solved


Product of Each Column
Given a matrix |mat| with |n| columns, return a row vector |v| of length |n|, where every element in |v| is the product of the |...

3 years ago

Solved


Diagonal Pattern
For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

3 years ago

Solved


Triangle of numbers
Create a matrix with the integers from 1 to |n| arranged in a triangular shape. Every row |i| of the matrix contains |i| inte...

3 years ago

Solved


Remove the air bubbles
Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

3 years ago

Solved


Approximate the cosine function
Without using MATLAB trigonometric functions, calculate the cosine of an argument |x| to a precision of |0.0001| *Hint:* You ...

3 years ago

Solved


Shuffle
Shuffle a vector by breaking it up to segments of |n| elements, and rearranging them in a reversed order. For example, the ve...

3 years ago

Solved


Separate even from odd numbers in a vector - with a loop
*Using a loop*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the end. T...

3 years ago

Solved


Separate even from odd numbers in a vector - without loops
*Without using loops*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the...

3 years ago

Solved


Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

3 years ago

Solved


Find the average of a random sequance
Write a function that generates random integers within a loop, and calculates the mean of the positive numbers only. At each ...

3 years ago

Solved


How many Integers?
Count the integers in a given vector |v|. You *must* use a loop to count each element separately. Examples: Input: v...

3 years ago

Solved


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...

3 years ago

Solved


Vector push
Append an element |x| to the end of the vector |v| and return both the extended vector and the new number of its elements. |x| c...

3 years ago

Solved


Write a function man that takes a row vector v and returns a matrix H as follows..
Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

3 years ago

Solved


frame of the matrix
Given the matrix M, return M without the external frame.

3 years ago

Solved


surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

3 years ago

Solved


Sum of adjacent elements in a vector
Given a vector v, return a vector s containting the sum of every two adjacent elements in the vector. Every element s(i) cont...

3 years ago

Solved


Remove the first, third and fifth rows of a matrix
Given a matrix x with at least five rows, return a matrix y that includes all rows of x except for th 1st, the 3rd and 5th. E...

3 years ago

Solved


How many days in a month?
Return the number of days in a given month in 2017. If the input is not a valid month number, return -1. Examples: Input...

3 years ago

Solved


Find the largest number
Find the largest number |x| among 4 numbers given as variables |a|, |b|, |c|, and |d|. Example: Input: a = 4; b = 7; c ...

3 years ago

Solved


Sum of Two Numbers
Given two integer numbers x and y, calculate their sum and put it in z. Examples: Inputs x = 2, y = 4 Output z is 6 ...

3 years ago