note description: "[ Basic mathematical operations, single-precision. This class may be used as ancestor by classes needing its facilities ]" library: "Free implementation of ELKS library" status: "See notice at end of class." legal: "See notice at end of class." date: "$Date$" revision: "$Revision$" class SINGLE_MATH inherit MATH_CONST feature -- Access log_2 (v: REAL_32): REAL_32 -- Base 2 logarithm of `v' do Result := log (v) / log ({REAL_32} 2.0) ensure instance_free: class end cosine (v: REAL_32): REAL_32 -- Trigonometric cosine of radian `v' approximated -- in the range [-pi/4, +pi/4] external "C signature (double): double use " alias "cos" ensure instance_free: class end arc_cosine (v: REAL_32): REAL_32 -- Trigonometric arccosine of radian `v' -- in the range [0, pi] external "C signature (double): double use " alias "acos" ensure instance_free: class end sine (v: REAL_32): REAL_32 -- Trigonometric sine of radian `v' approximated -- in range [-pi/4, +pi/4] external "C signature (double): double use " alias "sin" ensure instance_free: class end arc_sine (v: REAL_32): REAL_32 -- Trigonometric arcsine of radian `v' -- in the range [-pi/2, +pi/2] external "C signature (double): double use " alias "asin" ensure instance_free: class end tangent (v: REAL_32): REAL_32 -- Trigonometric tangent of radian `v' approximated -- in range [-pi/4, +pi/4] external "C signature (double): double use " alias "tan" ensure instance_free: class end arc_tangent (v: REAL_32): REAL_32 -- Trigonometric arctangent of radian `v' -- in the range [-pi/2, +pi/2] external "C signature (double): double use " alias "atan" ensure instance_free: class end sqrt (v: REAL_32): REAL_32 -- Square root of `v' external "C signature (double): double use " ensure instance_free: class end exp (x: REAL_32): REAL_32 -- Exponential of `v'. external "C signature (double): double use " ensure instance_free: class end log (v: REAL_32): REAL_32 -- Natural logarithm of `v' external "C signature (double): double use " ensure instance_free: class end log10 (v: REAL_32): REAL_32 -- Base 10 logarithm of `v' external "C signature (double): double use " ensure instance_free: class end floor (v: REAL_32): REAL_32 -- Greatest integral value less than or equal to `v' external "C signature (double): double use " ensure instance_free: class end ceiling (v: REAL_32): REAL_32 -- Least integral value greater than or equal to `v' external "C signature (double): double use " alias "ceil" ensure instance_free: class end rabs (v: REAL_32): REAL_32 -- Absolute value of `v' external "C signature (double): double use " alias "fabs" ensure instance_free: class end note copyright: "Copyright (c) 1984-2018, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end