39
51
Important precaution when using “Solve” function:
•
The following functions
, ,
∑
,
, Pol, Rec, Q…r, Rand, i-Rand or
multi-statement are not allowed to input into an equation for SOLVE
function.
•
Since SOLVE function uses Newton’s Method to obtain the solution,
even if there are multiple solutions, only one of them will be shown as
the solution.
•
SOLVE function may not be able to obtain a solution because of preset
initial value of the solution variable. In case this happens, try to change
the initial value of the solution variable.
•
SOLVE function may not be able to find the correct solution, even if the
solution(s) exists.
•
If an equation contains input functions that include an open parenthesis,
do not omit the closing parenthesis.
•
It will show “Variable ERROR” when the expression does not contain the
variable that you want to solve.
•
Newton’s Method may have problems for solving the following types of
functions, for example
y = ex, y = , y = sin(x), y =
x,
etc.
•
In case the equation takes long time for solving, the calculator will display
“PROCESSING” screen, you can cancel the processing of SOLVE
operation by pressing the key.
X= B
2
C
B?
0
C?
0
Solve for X
0
X= B
2
C
X= 523.5987756
L
-
R = 0
Display
Key in Operation
Initial value
1
3
Solution variable
Solution
1
3
Example:
To solve X= B
2
C (when B=5; C=20)
1
3
d
dx
•
The Precision of Solution shows the result when the obtained
solution is assigned to the solution variable. The precision of the
obtained solution is higher if this value is closer to zero.
Continue Screen
•
SOLVE performs convergence a preset number of times. If it
cannot find a solution, it displays a confirmation screen that shows
“Continue: [=]”, asking if you want to continue. Press to continue
or to cancel the SOLVE operation.
1
x
√
Precision of solution
