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• Three trigonometric functions are readily available in the keyboard:
sine (
), cosine ( ), and tangent ( ). Arguments of these
functions are angles in either degrees, radians, grades. The
following examples use angles in degrees (DEG):
In ALG mode:
In RPN mode:
• The inverse trigonometric functions available in the keyboard are the
arcsine (
), arccosine ( ), and arctangent ( ).
The answer from these functions will be given in the selected angular
measure (DEG, RAD, GRD). Some examples are shown next:
In ALG mode:
In RPN mode:
All the functions described above, namely, ABS, ABS, SQ, √, ^, XROOT,
LOG, ALOG, LN, EXP, SIN, COS, TAN, ASIN, ACOS, ATAN, can be
combined with the fundamental operations (
) to form more
complex expressions. The Equation Writer, whose operations is described in
Chapter 2, is ideal for building such expressions, regardless of the calculator
operation mode.