Nugroho's blog.

Here's my first kivy program after a while.

Suppossed we want to animate our plot, say f(x) = (x-c)^(2) to see the effect of various c value, we could do it in Python using Matplotlib ...

Yeah, what about it? The previous code have the both end bounded . If we want a free/unbound end, we could set the condition at the with ...

I use matplotlib module to do the animation. The main code is in def waves(y0,y1,cb) that use finite difference that solved initial value ...

Yeah, it's basically Gauss elimination (or we could call it Gauss Naif :) ) but with slight modification at the end. So, instead ...

Okay, we've done the manual one , how about automatize it? It's actually just a matter of finding the pattern on that code  and af...

What if we didn't do back substitution on Gauss Naif method but eliminate the rest instead? Nah, we get the Gauss Jordan here. The i...

How about some manual matrix using manual Gauss just like always, but in Python? Okay, here it is. I use tuple, I think it's just the ...

Maybe that's something come to our mind when we read this code . Yeah, that's forward dfference. It's designed to get the diffe...

This Python code only works with function that crossing x-axis. The idea is we started from x=0 and walking to the positive direction and ...

It's a whole a lot easier than Newton's divided differences interpolation polynomial , because there is no divided difference part...

We may already knew that on computational physic,  differentiation is used in Euler method to compute integration, or used in finite differe...

Pylab is Python module that contain NumPy and MatPlotlib. Let f(x) = x^2 and we want to integrate it from 0 to 1. Numerically we could u...

Remember the infamous Flappy Bird? Yup, I will create the program based on that algorithm.

I wrote code for this in Delphi . This time I want to rewrite it in Python based on this wiki . I use this set of data point (0,0) (1,1) (2...

There's always another way to solve something. So, I have another code for "Turtle in Circle" code, :) In the script below, I...

I use previous code and improve it so the turtle could only move at certain circle area. import turtle from random import uniform import nu...

I use turtle module, the standard module, in Python. The turtle movement has random direction (angle), and random distance (forward/backward...

 Here's the Code #code from visual import * from random import uniform display(center=(0,2,0),background=(1,1,1), autoscale=False, rang...

  I use vector projection and rejection to calculate velocity after bouncing the side of cone, :) #code from visual import * from random im...