- How do I use a nested IF(AND) in an Excel array formula?
How do I get a nested 'AND' to work inside 'IF' in an array formula? I reduced my problem to the following example: Note: the above image has been updated to included the array formula curly brac
- Why do we use arrays instead of other data structures?
That is where arrays get beat, they provide a linear O (N) search time, despite O (1) access time This is an incredibly high level overview on data structures in memory, skipping over a lot of details, but hopefully it illustrates an array's strength and weakness compared to other data structures
- Arrays vs Vectors: Introductory Similarities and Differences
Arrays contain a specific number of elements of a particular type So that the compiler can reserve the required amount of space when the program is compiled, you must specify the type and number of elements that the array will contain when it is defined
- Whats the simplest way to print a Java array? - Stack Overflow
FYI, Arrays deepToString() accepts only an Object [] (or an array of classes that extend Object, such as Integer, so it won't work on a primitive array of type int [] But Arrays toString(<int array>) works fine for primitive arrays
- How to merge two arrays in JavaScript and de-duplicate items
The nice thing about this one is performance and that you in general, when working with arrays, are chaining methods like filter, map, etc so you can add that line and it will concat and deduplicate array2 with array1 without needing a reference to the later one (when you are chaining methods you don't have), example:
- How do I declare and initialize an array in Java? - Stack Overflow
You can either use array declaration or array literal (but only when you declare and affect the variable right away, array literals cannot be used for re-assigning an array) For primitive types: int[] myIntArray = new int[3]; each element of the array is initialised to 0 int[] myIntArray = {1, 2, 3}; int[] myIntArray = new int[]{1, 2, 3}; Since Java 8 Doc of IntStream: https: docs
- Array versus List lt;T gt;: When to use which? - Stack Overflow
Although arrays are not resizable, it is not difficult to have code store an array reference along with the number of elements that are in use, and replace the array with a larger one as required
- Concatenating two one-dimensional NumPy arrays - Stack Overflow
Use: np concatenate([a, b]) The arrays you want to concatenate need to be passed in as a sequence, not as separate arguments From the NumPy documentation: numpy concatenate((a1, a2, ), axis=0) Join a sequence of arrays together It was trying to interpret your b as the axis parameter, which is why it complained it couldn't convert it into a scalar
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