Coordinate conversion (rectangular ↔ polar), A syntax and input, A remarks – Casio fx-5800P User Manual
Page 48: E-47
E-47
The following shows the calculation formula used for
Σ calculations.
Σ (
f
(
x
),
x
,
a
,
b
) =
f
(
a
) +
f
(
a
+1) + .... +
f
(
b
)
A Syntax and Input
Σ (
f
(
x
),
x
,
a
,
b
)
f
(
x
): Function of
x
(parameter variable specifi ed below)
x
:
Parameter variable (Any letter from A through Z)
• If the variable name you specify here does not match the variable name
used within the function of
x
, the variable in the function will be treated as a
constant.
a
:
Start point of calculation range
b
:
End point of calculation range
•
a
and
b
are integers in the range of –1 × 10
10
<
a
<
b
< 1 × 10
10
.
• The step for this calculation is fi xed as 1.
Example:
Σ ( X + 1, X, 1, 5) = 20
B
z – {MATH} 4(Σ ()S0(X)
+1ea0(X)e1e5E
b
z – {MATH} 4(Σ ()S0(X)
+1,a0(X),1,5)E
A Remarks
• Use of
Σ ( is supported in the COMP, SD, REG, and EQN Modes only.
• The following functions cannot be input for the
f
(
x
),
a
, and
b
parameters:
∫ (,
d
/
dx
(,
d
2
/
dx
2
(,
Σ (. In addition, the Pol( and Rec( functions, and the random number functions cannot be
input for the
f
(
x
) parameter.
• You can interrupt an ongoing
Σ calculation operation by pressing o.
k
Coordinate Conversion (Rectangular
↔ Polar)
Pol(, Rec(
Your calculator can convert between rectangular coordinates and polar coordinates.
o
o
Rectangular Coordinates (Rec)
Polar Coordinates (Pol)