Tan2Cs2; Tan2Sc - HP 48gII Advanced User's Reference Manual

the variation in terms of the dependent variable, the function value.
Level 1/Item 3: A graphic object that shows how the variation table was computed.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag -3 clear).
Radians mode must be set (flag –17 set).
Example: Tabulate the variation of the function:
2
–
x 1
Command:
TABVAR(X^2-1)
Result:
{'X^2-1' {{ '- ' – 0 + ' ' }{ '+ '
Viewing the graphic, one sees the original function F and its derivative, as functions of X, and
the variation table for X and F, shown as a matrix
See also: SIGNTAB

TAN2CS2

Type: Command
Description: Replaces tan(x) terms in an expression with (1-cos(2x))/sin(2x) terms.
Catalog, ...µ
Access:
Input: An expression
Output: The transformed expression.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag -3 clear).
Radians mode must be set (flag –17 set).
Example: Replace tan(x) terms in the function:
x
tan
Command:
TAN2CS2(TAN(X)^2)
Result:
((1-COS(2*X))/SIN(2*X))^2
See also: TAN2SC, TAN2SC2

TAN2SC

Type: Command
Description: Replaces tan(x) sub-expressions with sin(x)/cos(x).
P
Access:
TRIG
Input: An expression
Output: The transformed expression.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag -3 clear).
Radians mode must be set (flag –17 set).
Example: Replace tan(x) terms in the function:
tan x
Command:
TAN2SC(TAN(X)^2)
Result:
(SIN(X)/COS(X))^2
See also: HALFTAN, TAN2CS2, TAN2SC2
4-72 Computer Algebra Commands
2
, Trigonometry, ...ÑL
2
'-1' '+ ' }} Graphic 96 × 55 }