Using CALC
CALC lets you input calculation expressions that include one or more
variable, assign values to the variables, and calculate the result. CALC can
be used in the Calculate Mode and Complex Mode.
You can use CALC to save the types of expressions below.
• 2
x
+ 3
y
, 2A
x
+ 3B
y
+ C, A + B
i
, etc.
•
x
+
y
:
x
(
x
+
y
), etc.
•
y
=
x
2
+
x
+ 3, etc.
Note:
During the time from when you press
until you exit CALC by
pressing
, you should use Linear input procedures for input.
To store 3A + B and then substitute the following values to perform the
calculation: A = 5, B = 10
3
(A)
(B)
5
10
→
Using SOLVE
SOLVE uses Newton’s method to approximate the solution of equations.
Note that SOLVE can be used in the Calculate Mode only. SOLVE supports
input of equations of the following formats.
Examples:
y
=
x
+ 5,
x
= sin(M),
xy
+ C (Treated as
xy
+ C = 0)
Note
• If an equation contains input functions that include an open parenthesis
(such as sin and log), do not omit the closing parenthesis.
• During the time from when you press
(SOLVE) until you exit
SOLVE by pressing
, you should use Linear input procedures for
input.
To solve
x
2
+
b
=
0
for
x
when
b
=
-2
(
x
)
(B)
(=) 0
(SOLVE)
Input an initial value for
x
(Here,
input 1):
1
Assign -2 to B:
2
Specify the variable you want to solve for
(Here we want to solve for
x
, so move the
highlighting to
x
.):
Solve the equation:
(1) Variable solved for
(2) Solution
(3) (Left Side) − (Right Side) result
• Solutions are always displayed in decimal form.
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