indexing description: "Basic mathematical operations, single-precision. This class may be used as ancestor by classes needing its facilities." class interface SINGLE_MATH feature -- Access arc_cosine (v: REAL): REAL -- Trigonometric arccosine of v arc_sine (v: REAL): REAL -- Trigonometric arcsine of v arc_tangent (v: REAL): REAL -- Trigonometric arctangent of v ceiling (v: REAL): REAL -- Least integral value greater than or equal to v cosine (v: REAL): REAL -- Trigonometric cosine of radian v approximated -- in the range [-pi/4, +pi/4] floor (v: REAL): REAL -- Greatest integral value less than or equal to v log (v: REAL): REAL -- Natural logarithm of v require v > 0.0 log10 (v: REAL): REAL -- Base 10 logarithm of v require v > 0.0 log_2 (v: REAL): REAL -- Base 2 logarithm of v require v > 0.0 sine (v: REAL): REAL -- Trigonometric sine of radian v approximated -- in range [-pi/4, +pi/4] sqrt (v: REAL): REAL -- Square root of v require v >= 0.0 tangent (v: REAL): REAL -- Trigonometric tangent of radian v approximated -- in range [-pi/4, +pi/4] invariant -- from GENERAL reflexive_equality: standard_is_equal (Current); reflexive_conformance: conforms_to (Current); end -- class SINGLE_MATH