Mark Wickens

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ASN ACS ATN

[All Models]

Purpose

Returns the value of the corresponding inverse trigonometric function value for the argument.

Format

ASN     (argument)
         └──┬───┘
   Numeric expression

ACS     (argument)
         └──┬───┘
   Numeric expression

ATN     (argument)
         └──┬───┘
   Numeric expression

*The parenthesis enclosing the argument can be omitted when the argument is a numeric value of variable.

Example

ASN(0,1)

Parameters

argument: Numeric expression in the range of -1 <= argument <= 1 (ASN, ACS)

Explanation

1. Returns the value of the corresponding trigonometric function for the argument.
   • ASN: ARCSINE
   • ACS: ARCCOSINE
   • ATN: ARCTANGENT
2. Function values are returned within the following ranges:
   • -90 degrees <= ASN(x) <= 90 degrees, 0 degrees <= ACS(x) <= 180 degrees
   • -90 degrees <= ATN(x) <= 90 degrees

See

• ANGLE
• SIN COS TAN

Sample Program

10  ANGLE 1
20  INPUT "INPUT NUMBER (-1 TO 1)="; N
30  PRINT N; "=SIN("; ASN N; "RAD)"
40  PRINT N; "=COS("; ACS N; "RAD)"
50  PRINT N; "=TAN("; ATN N; "RAD)"
60  ANGLE 0: END

Displays trigonometric angles in radians for each input in range of -1 to 1.