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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.
-1
-1
12 sec
sec
value
Enters an inverse secant.
Chapter 2: Operating the Graphing Calculator
33
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