Try to create a function that will prefix a given character array with "|.." and postfix it with "..|". The character section should always be atleast 2 symbols, use '.' to fill up remaining spaces if needed. (so that would be if the supplied character array has size 0 or 1) You could then create a loop to call this function with an array and call it with size 0, 1, 2 and 3 using the same array.. ('c','h' and 'm')

It's fine to use. math.h might define M_PI but this is only if

__STRICT_ANSI__

is defined. As a result some implementation might not have it either I think. If it does have it and it's defined, you wouldn't be able to define M_PI yourself when including math.h unless you use shady compiler-specific intructions to temporarily disable the definition like this:

math.h might define M_PI but this is only if __STRICT_ANSI__
is defined.

Everything in this statement is making an assumption about the implementation. Neither M_PI nor __STRICT_ANSI__ are required by the C standard. M_PIis a common extension though, so it would be best to safely define it if you use it in portable code:

#ifndef M_PI
#define M_PI 3.1415926535
#endif

And because both PI and M_PI have well established meanings, it would be unwise to use those names as anything but a constant for the value of pi. Or at most a working variable that eventually ends up at an approximation of pi.

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 ...

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 ...

Hi. so this is actually a continuation from another question of mineHere but i was advised to start a new thread as the original question was already answered.

This is the result of previous question answered :