Is it possible to use OpenGL ES without GLKit?

Question

Android

Comrades, I sat down to study OpenGL ES 2.0 in order to program under ios.
I downloaded books and found manuals and guides on the Internet. But here's the problem - the GLKIT framework is used everywhere, and hence its types / functions. For example: GLKMatrix4, GLKMatrix3, GLKView
I want to use pure OpenGL without GLKit.
Are there standard analogues of these types and functions in OpenGL ES or will you have to implement everything yourself?
Are there any books / guides / articles in this case on the implementation of these tools on their own or about pure opengl es ?
All books and examples (in XCODE for example) use GLKit.

Answer 1

A C++ library that simply generates matrices for OpenGL is called GLM. How it works - any book on computer graphics, such as Porev. It is useful to write a software drawing of a rotating cube, but then it is easier to use it.
Also, for ES, there should be an analogue of the glew and glut libraries, which do most of the routine work. The first calls a ton of functions like GetProcAddress(...) to make it work - nothing smart. The second prepares the screen for OpenGL rendering, so you don't have to think about how it's done on the target platform itself. If you have a framework that includes the first, second, and third, then nothing but a headache from trying to link it all, the desire to do everything yourself will not bring.
From the library itself, all these funds have long been removed.