20021201
2-7-13
Using the Action Menu
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taylor
Function: Finds a Taylor polynomial for an expression with respect to a specific variable.
Syntax: taylor (Exp/List, variable, order [,center point] [ ) ]
Example: To find a 5th order Taylor polynomial for sin(
x
) with respect to
x
= 0 (in the
Radian mode)
Menu Item: [Action][Calculation][taylor]
• Zero is the default when you omit “[,center point]”.
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tanLine
Function: Returns the right side of the equation for the tangent line (
y
= ‘expression’) to
the curve at the specified point.
Syntax: tanLine (Exp/List, variable, variable value at point of tangency [ ) ]
Example: To determine the function of the line tangent to
y
=
x
3
at
x
= 2
Menu Item: [Action][Calculation][tanLine]
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normal
Function: Returns the right side of the equation for the line normal (
y
= ‘expression’) to
the curve at the specified point.
Syntax: normal (Exp/List, variable, variable value at point of normal [ ) ]
Example: To determine the function of the line normal to
y
=
x
3
at
x
= 2
Menu Item: [Action][Calculation][normal]
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arcLen
Function: Returns the arc length of an expression from a start value to an end value with
respect to a specified variable.
Syntax: arcLen (Exp/List, variable, start value, end value [ ) ]
Example: To determine the arc length for
y
=
x
from
x
= 0 to
x
= 4
Menu Item: [Action][Calculation][arcLen]
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