#### How to make a game of PONG in Excel – part #5

27/02/2011

In this part of the tutorial, the analysis of the ball movement is continued. The effects of the collision events are introduced in the equations of movement.

#### How to make a game of PONG in Excel – part #4

26/02/2011

In this part of the tutorial the analysis of the ball movement is taken farther, to include such effects as bouncing off the walls of the court and collision with the bats.

#### How to make a game of PONG in Excel – part #3

25/02/2011

In this tutorial (which is a continuation of part#2) the kinematics of the ball starts being implemented. Two new macros are being introduced, the “Serve” macro and the “Play” macro.

#### How to make a game of PONG in Excel – part #2

24/02/2011

In this section two bats are created (the opponent’s bat and the player’s bat). The player’s bat movements are controlled by the vertical mouse movement. The geometry of movement, placement and charting of the bats are explained.

#### How to make a game of PONG in Excel – part #1

23/02/2011

This post contains the first part of a series of tutorials demonstrating how to build a lively game of Pong in Excel. The section deals with the bat movement VBA macro, and plotting the “court” or “tennis-table”  on a 2D scatter chart.

#### Casual Introduction to Numerical Methods – spring-mass-damper system model – part#5

22/02/2011

In this tutorial, most of the calculations for the numerical simulation a SMD (spring-mas-damper) system will be consolidated into a single formula, the coordinate formula. In this case, in order to calculate the coordinate at the end of a any time step, we will need just the coordinates from the previous two time steps and of course the input parameters (constants). These input parameters are: mass, damping ratio, spring constant and time…

#### Casual Introduction to Numerical Methods – spring-mass-damper system model – part#4

21/02/2011

This tutorial explains the principles to generating animation for the spring-mass-damper system analyzed in the previous presentations.

#### 2D Projectile Motion Tutorial #7

20/02/2011

In the this tutorial, after we got most of the trajectory calculation concentrated in just two columns, we will write a custom VBA function (dual output) to replace the spreadsheet computations used. This process of  starting with very simple models, then refining the calculations and then learning how to write custom functions for those calculations will be extremely useful later for developing more complex models.

#### 2D Projectile Motion Tutorial #6

19/02/2011

This tutorial simplifies the previous model and manages to describe the (x,y) flight coordinates using just two formulas placed on columns D and E. A custom VBA trajectory function will be introduced in the next section which preserves the effects of gravity and aerodynamic drag.