There are a lot of "bugs" in your code.
Frist, you miss the using namespace std; line before the main() function, so the compiler might not recognize cout and string .
You also missed a semicolon after "Hello World!" .
Another thing is that you can't declare variables inside cout , so you should take float x = 5.0f * str outside cout . The multiplication operation of a float type and string type is not even declared, so float x = 5.0f * str has no meaning. The variable 65Num has an "illegal" name - variables' names cannot begin with a digit.
Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...
I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...