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Binbin Qi


China University of Petroleum

3,663 total contributions since 2009

Professional Interests: Machine Learning/ Math/ Geophysics

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Solved


remove numbers from a string
check the given string for any numbers.in case one is found,remove it.but the two portions should be separated. if more than one...

8 days ago

Solved


Calculate the area of a circle
Given a circle of diameter x calculate its area

8 days ago

Solved


find subscripts from linear index
a matrix and the linear index of an element is given as input. find the subscripts of that element. if linear index=3 , outp...

8 days ago

Solved


Convert Fahrenheit to Kelvin
Convert the value f in Fahrenheit to Kelvin

8 days ago

Solved


SAY 'OHYEAH'
Regardless of input, output the string 'OHYEAH'.

8 days ago

Solved


Repeat elements of a vector
Repeat each elements of a given vector according to their values. say x=[1,2,1,3] y=[1,2,2,1,3,3,3]

8 days ago

Solved


factorial
calculate x!

8 days ago

Solved


Given a vector x, return vector y with all negative elements from the vector x.
Given a vector x, return vector y with all negative elements from the vector x if x has negative elements. Otherwise return 0. ...

8 days ago

Solved


Check prime numbers
Let x, return 1 if x is a prime number, 0 otherwise e.g x = 7, return y =1; x = 6 return y = 0;

8 days ago

Solved


Create a "+" flag
Given two odd numbers, [m, n], return a matrix of size m x n which has all elements of the centre column and centre row set as 1...

8 days ago

Solved


Square
square root of x

8 days ago

Solved


Find MPG of Lightest Cars
The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

8 days ago

Solved


Quadratic equation
given three inputs (a, b, c) for the equation a*x^2+b*x+c=0; return 1 if the roots are complex (non zero imaginary), and 0 if th...

8 days ago

Solved


Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

1 month ago

Solved


square a number twice with square root of 4/5
square a number twice with square root of 4/5

1 month ago

Solved


Sum Sum Sum!
Calculate the sum of the natural numbers from 1 to n

1 month ago

Solved


Perimeter of a square!
Calculate the circumference of the square whose side is n

1 month ago

Solved


Triangle???
Calculate the circumference of an equilateral triangle with x

1 month ago

Solved


Sum sum!!!
Sum the numbers from 1 to n

1 month ago

Solved


Calculate the square root of a number
Input a Output b = srt(a)

1 month ago

Solved


calculate the length of matrix
input 1 array, calculate the length

1 month ago

Solved


Find the max element of the array
Find the max element of the array

1 month ago

Solved


to the 2 all elements
to the 2 all elements

1 month ago

Solved


easy problem
Find the last element of the array

1 month ago

Solved


the average value of the elements
Calculate the average value of the elements in the array

1 month ago

Solved


Converts numbers into characters
Converts numbers into characters

1 month ago

Solved


Duplicate all elements in the array
Duplicate all elements in the array

1 month ago

Solved


Chào các bạn.
Cho 3 số. Tính tổng của chúng

2 months ago

Solved


Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

2 months ago

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