[ The ECLiPSe Built-In Predicates | Reference Manual | Alphabetic Index ]Arithmetic
Built-ins for arithmetic computations
Predicates
- *(+Number1, +Number2, ?Result)
- Evaluates the product Number1 * Number2 and unifies the resulting value
with Result.
- +(+Number, ?Result)
- Checks if Number is a number and unifies it with Result.
- +(+Number1, +Number2, ?Result)
- Evaluates the sum Number1 + Number2 and unifies the resulting value with
Result.
- -(+Number, ?Result)
- Unifies the negative of Number with Result.
- -(+Number1, +Number2, ?Result)
- Evaluates the difference Number1 - Number2 and unifies the resulting value
with Result.
- /(+Number1, +Number2, ?Result)
- Evaluates the quotient Number1 / Number2 and unifies the resulting value
with Result.
- //(+Number1, +Number2, ?Result)
- Evaluates the integer quotient Number1 // Number2 and unifies the resulting
value with Result.
- /\(+Number1, +Number2, ?Result)
- Evaluates the bitwise conjunction Number1 /\ Number2 and unifies the
resulting value with Result.
- +Expr1 < +Expr2
- Succeed if the value of Expr1 is less than the value of Expr2.
- <<(+Number1, +Number2, ?Result)
- Shifts Number1 left arithmetically by Number2 bits and unifies the
resulting value with Result.
- +Expr1 =:= +Expr2
- Succeed if the value of Expr1 is equal to the value of Expr2.
- +Expr1 =< +Expr2
- Succeed if the value of Expr1 is less than or equal to the value of Expr2.
- +Expr1 =\= +Expr2
- Succeed if the value of Expr1 is not equal to the value of Expr2.
- +Expr1 > +Expr2
- Succeed if the value of Expr1 is greater than the value of Expr2.
- +Expr1 >= +Expr2
- Succeed if the value of Expr1 is greater than or equal to the value of
Expr2.
- >>(+Number1, +Number2, ?Result)
- Shifts Number1 right arithmetically by Number2 bits and unifies the
resulting value with Result.
- \(+Number, ?Result)
- Evaluates the bitwise complement of Number and unifies the resulting value
with Result.
- \/(+Number1, +Number2, ?Result)
- Evaluates the bitwise disjunction Number1 \/ Number2 and unifies the
resulting value with Result.
- ^(+Number1, +Number2, ?Result)
- Evaluates the expression Number1 "to the power of" Number2 and unifies the
resulting value with Result.
- abs(+Number, ?Result)
- Unifies the absolute value of Number with Result.
- acos(+Number, ?Result)
- Evaluates the trigonometric function acos(Number) and unifies the resulting
value with Result.
- asin(+Number, ?Result)
- Evaluates the trigonometric function asin(Number) and unifies the resulting
value with Result.
- atan(+Number, ?Result)
- Evaluates the trigonometric function atan(Number) and unifies the resulting
value with Result.
- between(+From, +To, +Step, ?Result)
- Generate integer values between From and To with Step increment.
- breal(+Number, ?Result)
- Converts Number into a breal number and unifies it with Result.
- breal_bounds(+Number, ?Min, ?Max)
- Extracts lower and upper floating point bounds of Number
- breal_from_bounds(++Lo, ++Hi, -Result)
- Constructs a bounded real from the given floating point bounds
- breal_max(+Number, ?Result)
- Extracts the upper floating point bound of Number
- breal_min(+Number, ?Result)
- Extracts the lower floating point bound of Number
- ceiling(+Number, ?Result)
- Unifies Result with the least integral value that is greater than or equal to
Number and of the same numeric type as Number.
- clrbit(+Number, +Index, ?Result)
- Result is Number with the Index'th bit cleared.
- cos(+Number, ?Result)
- Evaluates the trigonometric function cos(Number) and unifies the resulting
value with Result.
- denominator(+Number, ?Result)
- Extracts the denominator of the rational Number and unifies the resulting
integer with Result.
- eval(+Expression, ?Result)
- Used to evaluate eval/1 terms in arithmetic expressions.
- exp(+Number, ?Result)
- Evaluates the exponential function exp(Number) ("e to the power of Number")
and unifies the resulting value with Result.
- fix(+Number, ?Result)
- Unifies the integer part of Number with Result (Truncation towards zero).
- float(+Number, ?Result)
- Converts Number to float and unifies the resulting value with
Result.
- floor(+Number, ?Result)
- Unifies Result with the greatest integral value that is less or equal than
Number and of the same numeric type as Number.
- frandom(?F)
- Generates a random floating-point number F in the range <0, 1>.
- getbit(+Number, +Index, ?Result)
- Result is the Index'th bit of Number.
- ?Result is +Expression
- Evaluates the arithmetic expression Expression and unifies the resulting
value with Result.
- ln(+Number, ?Result)
- Evaluates the natural logarithm ln(Number) and unifies the resulting value
with Result.
- max(+ExprList, ?Result)
- Evaluates the the arithmetic expressions in ExprList and unifies their maximum
with Result.
- max(+Number1, +Number2, ?Maximum)
- Unifies the maximum of Number1 and Number2 with Maximum.
- min(+ExprList, ?Result)
- Evaluates the the arithmetic expressions in ExprList and unifies their minimum
with Result.
- min(+Number1, +Number2, ?Minimum)
- Unifies the minimum of Number1 and Number2 with Minimum.
- mod(+Number1, +Number2, ?Result)
- Evaluates the modulus Number1 mod Number2 and unifies the resulting value
with Result.
- numerator(+Number, ?Result)
- Extracts the numerator of the rational Number and unifies the resulting
integer with Result.
- plus(?Add1, ?Add2, ?Sum)
- Succeeds if Sum is the sum of integer arguments Add1 and Add2.
- random(?N)
- Generates a random integer N.
- rational(+Number, ?Result)
- Converts Number into a rational number and unifies it with Result.
- round(+Number, ?Result)
- Rounds Number to the nearest integral value of the same type
- seed(+Seed)
- Sets the initial seed Seed for generating random numbers with random/1 or
frandom/1.
- setbit(+Number, +Index, ?Result)
- Result is Number with the Index'th bit set.
- sgn(+Number, ?Result)
- Unifies Result with the sign of Number which is either -1, 0 or 1.
- sin(+Number, ?Result)
- Evaluates the trigonometric function sin(Number) and unifies the resulting
value with Result.
- sqrt(+Number, ?Result)
- Evaluates the square root sqrt(Number) and unifies the resulting value with
Result.
- sum(+ExprList, ?Result)
- Evaluates the the arithmetic expressions in ExprList and unifies their sum
with Result.
- tan(+Number, ?Result)
- Evaluates the trigonometric function tan(Number) and unifies the resulting
value with Result.
- times(?Factor1, ?Factor2, ?Product)
- Succeeds if Product is the result of multiplying integer arguments Factor1
and Factor2.
- xor(+Number1, +Number2, ?Result)
- Evaluates the bitwise exclusive disjunction Number1 xor Number2 and unifies
the resulting value with Result.
Description
See also the User Manual chapter on Arithmetic
Generated from arithmetic.eci on Sat Aug 7 01:44:12 2004