Write a function that, given a scalar real non-negative number, will return a two-element vector of the integer and fractional parts of the number.

Write a function that, given a scalar or vector of skyscraper heights from closest to furthest, will return an integer representing the number of skyscrapers that can be seen.

Write a function that will reshape a given array into the smallest square matrix that will contain all the elements of the argument, padding with additional elements if necessary.

Write a function that takes a character vector or scalar and returns a Boolean vector indicating anywhere an element is followed by an element of the same value.

Write a function that takes a Boolean vector or scalar and “turns off” all the 1s after the first 1.

Write a function that takes a character vector representing a DNA string and returns 4 integers of the number of occurrences for each of the symbols 'A', 'C', 'G', and 'T' respectively.

Write a function that takes a character vector as its right argument and k (the substring length) as its left argument and returns a vector of the k-mers of the original string.

Write a function that takes a string representing a nucleotide and returns a `1` if it is a valid DNA string, `0` otherwise.

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Write a function that calculates and returns the areas of 0 or more pie slices.

a lesson in writing unmaintainable scientific code

Write a function that will remove text found between pairs of double quotes.

Write a function that takes an integer array and replaces all the odd numbers with the next greater even number.

Write a function that will return the first n odd natural numbers.

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Write a function that takes as its right argument a vector of prices and as its left argument a numeric vector that indicates the number ordered and returns the total cost for the order.

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YouTube video by Dyalog User Meetings

YouTube video by Dyalog User Meetings

Write a function that takes a character vector as its right argument and one or more characters as its left argument, where those characters are delimiters in the right argument.

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YouTube video by Dyalog User Meetings

YouTube video by Dyalog User Meetings

Write a function that takes a numeric vector and returns a two element vector whose first element contains the values less than 0 (zero) in the vector and the second element contains all values greate...

Explore Dyalog ’26 workshops, with hands-on sessions on web services, namespaces, concurrency, performance, Link, and APL problem solving.

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YouTube video by Dyalog User Meetings