This program renames all highlighted files in a folder or directory. If you have say 100 baby pitures taken on wednesday 8 August 2007 you could rename them all in one shot from pic_2007_aug_8_wed_1_baby.jpg to pic_2007_aug_8_wed_100_baby.jpg. You also have a mask to only show files with certain extensions in a directory or folder. The demo is fully workable, but only renames a max of 5 files.
This program extracts complex roots from polynomials with complex coefficients.
For example the equation Y = 3X^3 + iX -8 has the following roots.
y = f(z) = + ( 3 + i 0 ) *z^ 3 + ( 0 + i 0 ) *z^ 2 + ( 0 + i 1 ) *z^ 1 + ( -8 + i 0 ) *z^ 0
Possible root found after 9 itterations. Z = 1.386727 + i -0.080214
New f(z) = Old F(z)/root = ( 3 + i 0 ) z^ 2 + ( 4.16018317110996 + i -0.240642423878626 ) z^ 1 + ( 5.74973841367212 + i 0.332588958616684 )...
This program demonstrates Newton's gravity law with different examples. Trolleys being pulled with ropes and friction involded is one example. We also have bullets being shoot and pendulums swinging. The demo is fully workable except for some functions being disabled. The demo gives a good idea of the program. For kids and school children who study science and who wish to learn more.
This calculator determines the capacitor that has to be added to an electrical circuit to correct the power factor in circuits with inductive loads. It has two modes of operation. The first mode is depended on the input source voltage, frequency and readings of the current and wattage used. The second mode of operation is depended on the input source voltage, frequency and load parameters.
Program that calculates maximum current for single or multi core copper cables and conductors for different environmental conditions and different sizes. The cables may be single core or multi core. It calculates the current for cables in the air or in the ground or against walls or inside walls or in direct sunlight and so on. The program uses the standards of SANS 10142-1 for wiring practises.
This is a very big number calculator. It does numbers in a very big way. It does all sorts of mathematical calculations such as + - * ^ / ! mod fibonacci prime GCD LCM primeness binomial proth and Lucas Lehmer. Ideal for number theory. This also an educational and scientific mathematical tool for kids learning about mod theory. Download the demo. It does everything, but the memory functions are disabled.
The program uses filters so that when you specify Ma, then all names with MA.... will be displayed. The program also sorts and can print out the list. Numbers can be added, deleted and edited. Numbers are displayed either by name or by surname. A very nice program to have. It works well in MS-DOS and Win3.1 It can also work in WIN95.
The program does all sort of complex arithmetic calculations on complex numbers.
It can do powers, multiplication, addition, divide and parrallel combinations.
It shows answers in a+ ib and in a*e^(i*angle).
It is a good tool for anyone working with complex numbers in mathematics, engineering, physics or any other scientific fields.
Program generates random numbers for Lotto tickets. Any combination of numbers , say 6 numbers from 1-49 will give as result for example 1,20,34,35,40,48 etc. Two numbers from 1-500 will for example deliver 56,378 and so on. I have used the program and have won a few times some money. Not much , but one never knows. Most people think they choose random,but they dont because they have a tendency to view certain numbers as lucky and others as not. ...
The program calculates if it is viable to buy a property. Very handy if you buy property and you want to rent it out. It takes all possible factors into concideration. It also gives advice on what to look out for when buying. The program is based on the book of a well known real estate guru.
This is a game. The program scrambles a grid of numbers and you have to rearange it in the fewest of moves. Its a fun game and educational for kids as well.
This program makes editing text very easy with functions such as copy , cut , paste , search , deleting certain text from all lines , replacing text in all lines , adding to end of all lines , inserting text in all lines in certain colomn , adding variable to all lines and so on.
This program is an educational game. Numbers get scrambled by the program. The player then has to unscramble the numbers in the shortest amount of moves. Not as easy as it looks.
This program makes it easy to run other programs. It utilizes a filter so that only files with the extension you want is shown. Clicking on it will run the file or read it depending on the extension. You also specify the runtime. Nice to have if you want your pc to look busy.
Sudoku 16x16 is a sudoku puzzle solver. You enter the puzzle and he solves it. The letters A to G and number 1 to 9 are used to enter the puzzle. You can change the speed of the solver, pause it and print it at any stage.
This program works out the calendar for any year and month. Quite handy if you want the calendar for say January 2050. Or if you want to know the day you were born, say 6 June 1963(Thursday). It prints the month in question out as well if you want to.
This game is an educational game testing and improving memory and numerical ability. The main purpose is to guess a number generated by the computer. The computer gives hints in the form of guessed number too big or too small.
This program does large number mathematics. If your calculator tells you 2 to the power of 64 is 1.844674407371e19 don't believe it. It is 18446744073709551616. The program can plus, divide, multiply do x to the power of y, do prime factors etc.
This program works out monthly installments on your homeloan and also supplies you with a list for all the months. It also tells you how much you may borrow on a certain payback amount. It also works out interest on loans etc. Very handy to have around if you do not trust your bank.
