GSL library can be used for advanced math operations and vector, stats, sort, permute, fitting, matrix, fourier transform, blas integration

This code demonstration a simple matrix addition and diagonal addition in kotlin using GSL

A simple example of OSMesa driver offscreen rendering to a buffer binary array

This explains OpenGL functions can be used to indirectly manipulate a numeric array

Kotlin Code

Step 1 download and install https://www.msys2.org/

Step 3 Install toolchains

pacman -S --needed mingw-w64-{x86_64}-{toolchain,meson,pkg-config,glib2,pango,cairo}

Step 4 Install GTK4 dependencies 

pacman -S  --needed mingw-w64-x86_64-atk  mingw-w64-x86_64-gdk-pixbuf2 mingw-w64-x86_64-gobject-introspection mingw-w64-x86_64-libepoxy mingw-w64-x86_64-graphene mingw-w64-x86_64-ffmpeg mingw-w64-x86_64-cmake mingw-w64-x86_64-pkg-config mingw-w64-x86_64-hicolor-icon-theme 

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/gtk4-gsk

This demo kotlin code explains how to render a cairo+graphene rectangle region using GSK

Kotlin Code

This is a small experiment for AVR Atmega8 

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/arduino-atmega8

A simple swap function which is possibly re-used inside actual avr "C/C++" code as library

This is an experimental code with few glitches

it allows Cygwin+Mingw to use GTK3 from cygwin to render opengl GLEW

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/gtk3-glew

Kotlin code

GTK windows design using glade builder

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/gtk3-glade3

This code explains how to use Kotlin to program GTK3 and Glade3 using Cygwin Glade designer

Install cygwin with below dependencies (basic cygwin installation explained here install R using cygwin)

Embedded OpenCL inside Kotlin

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/embed-opencl

OpenCL code which runs from kotlin

#pragma OPENCL EXTENSION cl_khr_byte_addressable_store : enable
__constant char hw[] = "Hello World";
__kernel void hello(__global char * A) {
    size_t tid = get_global_id(0);
    A[tid] = hw[tid];
}

Kotlin code which runs OpenCL

Embedded TCL inside Kotlin

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/embed-tcl

TCL code which runs from kotlin

puts "Hello, world!"

Kotlin code which run TCL

Embedded R inside Kotlin

GitHub: https://github.com/dickensas/kotlin-gradle-templates/tree/master/embed-r

Demo output

R code which is running inside Kotlin, simply add number 2 all the incoming array values and return