Access:

 

( Àis the leftshift of the

Ukey).

Flags:

Principal Solution (–1), Numerical Results (–3), Angle Mode (–17, –18)

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

 

z

 

atan z

 

 

'symb'

 

'ATAN(symb)'

 

 

 

 

 

 

See also:

ACOS, ASIN, ISOL, TAN

 

 

 

 

 

 

 

 

 

ATAN2S

 

 

 

 

 

Type:

Command

 

 

 

Description:

Transforms an expression by replacing atan(x) subexpressions with the following:

 

 

x

 

 

 

asin

------------------

 

 

 

x2 + 1

 

Access: Trigonometry, …Ñ

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).

See also: ASIN2C, ACOS2S, ASIN2T

Full Command and Function Reference 321

Page 141
Image 141
HP 48gII Graphing, 50g Graphing manual ATAN2S, Atan z, Symb ATANsymb, Acos, Asin, Isol, Tan