- Array increment positioning with respect to indexer in C - array[i . . .
In this example i = 3, so arr[3] = 40 It then increases the value from 40 to 41 So arr[i]++ increments the value of this particular index and a[i++] first increments the index and then gives the value for this index
- What is the difference between * arr and * arr[0] in C++, if arr is an . . .
Just like arr, this array lvalue decays to a pointer to first element when converted to an rvalue Except for cases where the operators are overloaded, * essentially cancel each other out They are inverse operations * arr[0] gives you the same as arr[0] and * arr gives you the same as arr
- difference between using arr[i] and arr. length in the for loop . . .
arr[i] is true as long as the value is not one of the following: false, 0, empty string, null, undefined, NaN i < arr length checks that i is less than the size of the array, which is what you should do
- c - In an array, what does arr [2] return? - Stack Overflow
In a C based language, arr[0] is a pointer to the first element in the array while arr[2] is a pointer to the third element in the array Arrays decay into pointers to the first element, so in certain context array and arr[0] are actually the same thing: a pointer to the first element
- What does arrays. length -1 mean in Java? - Stack Overflow
The reason behind arr length-1 is, we are looping all the elements from i=0 to i=6 as array lenght=8 and i<8-1 means i<7 so it would result in printing only from 0 to 6 So its going to print elements only upto :[23,75,982,22,74,45,0] Code should be changed from i<arr length-1 to i<arr length and you will print all values
- What does arr [:, [1,0,2] means in the snippet of code?
here [1,0,2] takes the order in which columns of the arr should be re-arranged i e the column at index [1] , then column at index [0] and finally the column at index [2] should be ordered while rows' order remains the same
- Understanding arr[::-1] in numpy. Is this a special case?
I realize that arr[::-1] returns a reversed view for arr Further arr[st_index:end_index:increment] is a compact syntax for indexing while creating view
- what is the working of arr [arr1,arr2] in numpy - Stack Overflow
arr[i,:] selects i-th row and all the columns arr[:,i] selects i-th column and all the rows arr[i,j] selects i-th row and j-th column Let's say i or j are vectors- For example take i = [[a,b]] Now, arr[i,:] = arr[[a,b],:] will select a-th and b-th rows So, if:
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