This calculator solves for two unknowns, for
equations similar to: AX+BY=V and KX+DY=W 


Delete the numbers in the following six white
input boxes, and enter your own numbers. For calculated
results, left click with the mouse on the calculation button, or on the
background. 


Input boxes for AX+BY=V

If numbers entered for A & B or K & D are singledigit
numbers, (when decimal places are removed) the equation is displayed in
the gray box below. (Decimals are not shown in the gray
box) However, if the numbers for A & B or K & D
involve more than one digit, (excluding decimals), the equation is
displayed in the larger green box, which is situated just below the gray
box. 

A= 


B= 


V= 


Input boxes for KX+DY=W


K= 


D= 









W= 








Equations are displayed in this
box, in a vertical format, IF: A & B, or K & D
have more than one digit. 

AX+BY=V 


KX+DY=W 




AX 



KX 



+ 



+ 



BY 



DY 



















Calculated Results for X and Y Are: 




X= 





Y= 




Calculated results for X and Y are rounded
to 

decimal places. 
This can be changed 

by deleting the number in the small tan box,
and entering the number of decimal places you prefer. 


Below, calculated values of X and
Y are checked for accuracy 



V= 

Calculation error is 





AX+BY= 






W= 

Calculation error is 





KX+DY= 






The above numbers in this box are
rounded to 

decimal places. This can be
changed by 

deleting the number in the small yellow box,
and entering the number of decimal places you prefer. 

If the numbers in the pink box have more digits
than is necessary for your calculations, you might get rounding errors,
displayed in the pink box. However, the settings in the pink
box do not affect calculated results for X and Y. Similarly,
the number of decimal places that X and Y are rounded to, do not affect
the calculations in the pink box. 


Certain combinations of numbers will not
satisfy the two equations perfectly, and this can result in an error
message, or calculated results that are not perfectly accurate.
If calculated results show an error of about 5%, an error message
will be displayed. 


The relative degree of error is shown in the
two green boxes inside of the larger pink box. When numbers
are entered that can satisfy both equations perfectly, and are in the
range of the calculator, the green boxes will display
0.000000000000. 


Actually, the numbers displayed in
the upper green box is the difference between the value entered for V and
the calculated value for V, based on the equation AX+BY=V, with the
calculated values for X. and Y. Similarly, the lower green
box is for the KX+DY=W. That is, the number in the upper
green box is the value of VAX+BY and the lower green box the value
of WKX+DY. 


