I searched all over the net trying to find the reason behind why numbers are illegal as first characters in naming identifiers in C++, they say its illegal but they don't say why its illegal
Leading digits would be confused with numeric literals. If you allow leading digits then that would require further restrictions on subsequent characters to ensure that the literal logic doesn't find a false positive, which complicates the language definition on top of complicating the compiler by making it do unnecessary validation.
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 ...
Hi. I have a form with list box : lst_product, datagridview : grd_order and button: btn_addline. lst_product has a list of product ids selected from database (MS Acess 2013) , grd_order is by default empty except for 2 headers and btn_addline adds rows to grd_order.