Don't forget to press ESCAPE to remove a help screen.
This is where the n th roots of a complex number
are calculated. Here n must be less than or equal to 8. For
, you can enter any complex expression, which may involve previously created or kept numbers.
This is where you can view all the complex numbers you have created and kept.
This allows you to evaluate complex expressions. You can use the complex numbers created under the CREATE/EDIT option, or the SOLVE z^n =
option.
The operations which are recognized are :
+ addition
- subtraction
* multiplication
/ division
~ complex conjugation
^, which is used to raise a complex number to a positive integer power.
This where the computer displays complex numbers.
The keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex expression, the radius used is the modulus (absolute value) of that number.
Ee which allows you to enter, and display, any complex expression. It may be constructed from previously created, or kept, numbers.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
This allows you to select the graphics printer hooked up to your system. The choice is simple - either EPSON compatible, IBM PROPRINTER, or LASERJET.
If a file named PRINTER.CFG is found, and the contents of the first line of that file is the single word LASER, then the default will be the LASERJET, if the word is IBM, then the default will be the PROPRINTER, otherwise it will be the EPSON.
This allows you to reset all your complex numbers to zero.
The computer displays two arbitrary complex numbers, a and b, and you must move the cursor, via the arrow keys, to the point on the plane representing the number a+b. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
The computer displays two arbitrary complex numbers, a and b, and you must move the cursor, via the arrow keys, to the point on the plane representing the number a*b. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
The computer displays arbitrary complex numbers, and you must move the cursor, via the arrow keys, to the point on the plane representing the number at the top of the screen. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
This is where you can test your understanding of the geometrical properties of complex numbers.
The computer displays two arbitrary complex numbers, a and b, and you must move the cursor, via the arrow keys, to the point on the plane representing the number a-b. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the ss\creen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
The computer displays an arbitrary complex numbers, a, and you must move the cursor, via the arrow keys, to the point on the plane representing the number a~, the complex conjugate of a. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
The computer displays an arbitrary complex numbers, a, and you must move the cursor, via the arrow keys, to the point on the plane representing the number 1/a, the reciprocal a. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the sscreen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
Use this to create and edit complex numbers. The operations which are recognized are :
+ addition
- subtraction
* multiplication
/ division
~ complex conjugation
^, which is used to raise a complex number to a positive integer power.
Thus the complex number 2+3i would be entered as 2+3*i.
The computer displays an arbitrary complex numbers, a, and you must move the cursor, via the arrow keys, to the point on the plane representing the number 1/a~, the inversion of a about the unit circle. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
This is where complex numbers are created, edited, computed, and plotted.
The computer displays two arbitrary complex numbers, a and b, and you must move the cursor, via the arrow keys, to the point on the plane representing the number a/b. After you press x ("x marks the spot"), the computer will tell you whether you are right or wrong.
To move the cursor by large steps, press the + key on the number pad. To move the cursor by small steps, press the - key on the number pad.
The other keys which are in operarion are:
Cc which draws a circle of the specified radius. If you enter a complex number, the radius used is the modulus (absolute value) of that number.
Rr which refreshes the screen.
z which zooms in by a factor of 2.
Z which zooms out by a factor of 2.
Allows you to load previously saved complex numbers from disk.
Allows you to save complex numbers to disk.
Allows you to change disk drives.
Allows you to change directories on the current drive.
Gives various disk information, viz. the current drive, the current directory, and the total and remaining free space on the current drive.
Lists all the files in the current directory.
These are the instructions you should have read when you first ran the program.
The wonderful band of people who don't get enough recognition.
Kwa Heri.
(Swahili for "Good Bye"!)
This is where complex numbers are saved and loaded, and other disk oriented chores are performed.
Miscellaneous operations which don't belong anywhere else.
(.txt)