33
Chapter 2: Operating the Graphing Calculator
06
∫
∫
equation, lower limit, upper limit [, tolerance] dx
Calculates an integral value
of equation Y from the lower
limit to the upper limit using
the specified tolerance (if not
specified, default value is 1E–5).
Use in conjunction with the
07
dx sub-menu item.
• Press the keys as follows in the Equation edit mode.
M
A
0
6
2
{
8
'
(
X
a
3
'
-
0.5
X
y
+
6
)
,
0.001
M
A
0
7
E
07 dx Enters a differential “
dx
” in an integration expression.
08
∑
(
∑
(
expression, initial value, end value [, increment]
)
Returns the cumulative sum of a
given expression from an initial
value to an end value in the
specified increment value (if not
specified, default increment is 1).
09 sec sec
value
Enters a secant function to
be used in a trigonometric
expression.
10 csc csc
value
Enters a cosecant (cosec) function to be used in a trigonometric
expression.
11 cot cot
value
Enters a cotangent (cotan) function to be used in a trigonometric
expression.
12 sec
-1
sec
-1
value
Enters an inverse secant.
