Maxcalc
Today i am demonstrating my own calculator.
I created that calculator using Visual Basic 6.0 because I wanted a portable lightweight application. Indeed it can run natively from Windows 95 until now, without having to update or install anything else.
It is small and always on top so that I can always have access to it while doing my other tasks.
The syntax is Matlab like, but it is not as picky so you can type equation in a hurry. For examples:
1-You don’t have to close the braces. (Typing: “2*(1+1” is equivalent to “2*(1+1)”)
2-It evaluate as you type so you can correct in real time. (No waste of time by pressing “Enter” for every equation)
3-It assumes a default value that makes sense when a value is missing for most equation. (“1+” is the same as “1+0”, but “1*” is the same as “1*1”. So if you start a long sequence of sum or multiplication it won’t bother you with trailing operator.)
4-It is a normally a one liner, although more complex equation can be performed while recalling previous equations using the Max’s special character $ and #.
I have many features such as:
1-Arrays (limited to 1 dimension in the syntax) (Example: ”(1,2,3)^2 = 1,4,9” which is handy for repetitive calculation. Furthermore a simple F7 key press show those value on a graph.
2-Support FFTs
3-Support Images, wav, txt files
4-Support Clipboard
5-Support Command line
6-Can perform animations for an extra dimension J
7-Support Sound Card access (Although limited in performance)
8-Support visual studio like F2 key to list commands that match actual beginning of equation.
Example of more complex possibility:
The following equations animate a frequency and its associate spectrum:
"loop(0.1,1:5);64;sin($1*(1:$2)/$2*2*pi);plot($3);plot(norm(hfft($3"
Multiple small equations are involved here. There is the break-out to understand:
loop(0.1,1:5);
Perform a loop at maximum speed for value 1 to 5
64;
A constant
sin($1*(1:$2)/$2*2*pi);
Calculate a time signal. ($ recall previous outputs separated by ;)
plot($3);
Plot previous time signal created
plot(norm(hfft($3
Plot the magnitude of the fft of the time signal previously generated.
If you are interested in the application I have started a source forge project at: https://sourceforge.net/projects/maxcalc/
Feel free to give it a try! Its free and it will always be. And don't worry, the complete used guide is given for all equations and their synthax.
