HP 50g User's Reference Manual
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Brand: HP
Category: Calculator
Type: Advanced user's reference manual
Model: HP 48gII , HP 49g+ , HP 50G
Pages: 693
Full Command and Function Reference 3-7
View these graphs with domain and range reversed to see how the domain of COS is restricted to
make an inverse function possible. Consider the vertical band in the lower graph as the restricted
domain Z = (x, y). COS sends this domain onto the whole complex plane in the range
W = (u, v) = COS(x, y) in the upper graph.
Access: !¾ ( ¾ is the left-shift of the T key).
Flags: Principal Solution (–1), Numerical Results (–3), Angle Mode (–17, –18)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
z
→
acos z
'symb'
→
'ACOS(symb)'
See also: ASIN, ATAN, COS, ISOL
ACOS2S
Type: Command
Description: Transforms an expression by replacing acos(x) in subexpressions with π/2–asin(x).
Access: Trigonometry, …Ñ
Input: The expression to transform.
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: Simplify the following expression: