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

FANN is an open source library  https://libfann.github.io/fann/docs/files/fann-h.html

which offers C based API which can be invoked from Kotlin

Below Kotlin example shows how it can be invoked

import fann.*

fun main() 
{

    var ann = fann_create_standard(4, 2, 8, 9, 1)
    
    fann_print_connections(ann)
    
    fann_destroy(ann)
}

Below is the sample output from MSYS2 terminal

GNU Octave https://www.gnu.org/software/octave/ 

Is one of the popular Scientific Programming Language or platform

general MATLAB functions will work in Octave

It can be download https://www.gnu.org/software/octave/download.html and installed for free

This Article explains how to trigger Mex script from Kotlin using "mex.h" and "octave.h" C API in Kotlin

Octave is installed in C:\octave with below structure and files

R is amazing platform which many numerical methods and analysis options available

This article explains how to use R in Windows using Cygwin

Reason for Cygwin, it has X11 and Cygwin-X with amazing setup selection tools and many libraries

Below are the installation steps

Step 1: Download and install Cygwin and dependencies

64 Bit Windows: https://www.cygwin.com/setup-x86_64.exe 32 Bit Windows: https://www.cygwin.com/setup-x86.exe