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Is the paranthesis sequence balanced ?
Quantum mechanics and computer science are interested in <http://en.wikipedia.org/wiki/Bra%E2%80%93ket_notation bra-kets>. Today...

9 years ago

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i forgot to use capital I
When referring to yourself you should write "I" (capital) and not "i". So correct the input string x, but be aware that other u...

9 years ago

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Return strings encapsulated by braces
Return all substrings that are contained within braces ({}). For example: str = 'x = rho*x{-1} + (1-rho)*y{+1}'; when...

9 years ago

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Find the sines of an isosceles triangle when given its area and height to its base.
Find the sines of an isosceles triangle when given its area and height to its base. Example S=60, h=5 result=[0.3752 0.3752 0...

9 years ago

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time of day
Calculate the time of day in days, hours, minutes or seconds passed since the beginning of the day, depending on the unit. The u...

9 years ago

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nanoseconds passed today
Calculate the amount of nanoseconds passed in the current day of a certain date string.

9 years ago

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microseconds passed today
Calculate the amount of microseconds (as a string) passed for a given date string

9 years ago

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Return ! if array element starts with a certain letter. Otherwise return ?
Input x=['try' 'once' 'more']; s='t' Output ans='!' Input x=['try' 'once' 'more']; s='O' Output ...

9 years ago

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Check if a string starts with another string
Input s='He was so tired' q='He' Output ans = true

9 years ago

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Return the length of the longest word in the string.
Example: Input s='A fractal is a natural phenomenon or a mathematical set that exhibits a repeating pattern that display...

9 years ago

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Create cotangent function out of sine.
Please, don't use cos, tan, cot matlab functions.

9 years ago

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Explode string
Break a sentence into cell of words

9 years ago

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Euclidean distance from a point to a polynomial
A not uncommon problem in the area of computational geometry is to find the closest point to a straight line from a given point,...

9 years ago

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Replace 0 to NaN!
In given matrix A=[1 nan nan; 2 2 nan; nan nan 1]; replace NaN to 0. Use matrix A as a input.

9 years ago

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Find the product of the positive elements above the main diagonal.
Example Input A=[1 2; -3 0] Output 2

9 years ago

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Power of n ?
Determine if _x_ (positive integer) is a power of _n_, return true or false accordingly.

9 years ago

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Find matrix of indices for multidimensional matrix.
Given some multidimensional matrix A. Get a matrix of the same size as A where all elements are replaced by their index along th...

9 years ago

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Calculate the centroid of a triangle
Info: https://en.wikipedia.org/wiki/Centroid Example Input: x = [0 0 1]; % x-coordinate y = [0 1 0]; % y-coordinat...

9 years ago

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Counting candies
In a classroom of |'n'| children, every even numbered child gets one big candy and every odd numbered child gets two small candi...

9 years ago

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how to concatenate matrices
What is the name of the function used to create a matrix C form two matrices A and B, using the syntax: C = [A B]; Outpu...

9 years ago

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Send vector into a struct object
Construct a struct object that contains n fields named a1, a2, ..., an, and has values from a given input vector of length n.

9 years ago

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struct2values()
Convert a struct object into a column vector. You can assume that the struct elements are scalars Example: a = struct();...

9 years ago

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Find the Sum of the Series:
<<https://psv4.vk.me/c810428/u48725350/docs/03e9821af0aa/for.jpg?extra=iyw_6UQfL0GhDJ2NtppzhQFjAvaCe79tBk0IIpSRcn5jRJvUgdAe4u7KP...

9 years ago

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Solution to Ax=b with singular A
Find solution to Ax=b problem if A is singular. Hint: Compute a minimum norm solution

9 years ago

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My cat likes strings!!
Create a string of specified length or more. It's that simple!

9 years ago

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Logarithm with base other than 'e'
Standard log() function returns natural logarithm with base equal to Euler constant. Compute logarithm for a given base.

9 years ago

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What do you get if you multiply six by nine?
The Hitchhiker's Guide to the Galaxy based task. Tip: 13-base numeral system

9 years ago

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Find the sides of an isosceles triangle when given its area and height to its base.
Find the sides of an isosceles triangle when given its area and height to its base. Example S=12, h=4, result will be [5 5 6]...

9 years ago

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What does the "B" in Benoit B Mandelbrot stand for?
Tip https://en.wikipedia.org/wiki/Mandelbrot_set

9 years ago

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Calculate the eigenvalues of A.
Calculate the sum of the eigenvalues of A. If it's odd return cubed else return 54.

9 years ago