ballerina/lang.decimal

function abs(decimal x) returns decimal

Returns the IEEE absolute value of a decimal value.

function ceiling(decimal x) returns decimal

Rounds a decimal up to the closest integral value.

function floor(decimal x) returns decimal

Rounds a decimal down to the closest integral value.

function fromString(string s) returns decimal|error

Returns the decimal value represented by a string.

s must follow the syntax of DecimalFloatingPointNumber as defined by the Ballerina specification with the following modifications

• the DecimalFloatingPointLiteral may have a leading + or - sign
• a FloatingPointTypeSuffix is not allowed This is the inverse of function value:toString applied to an decimal.

function max(decimal x, decimal... xs) returns decimal

Returns the maximum of one or more decimal values.

function min(decimal x, decimal... xs) returns decimal

Returns the minimum of one or more decimal values.

function quantize(decimal x, decimal y) returns decimal

Return a decimal with a specified value and exponent. Return a decimal value that has the same value (except for rounding) as the first argument, and the same exponent as the second argument. This is the IEEE quantize operation.

function round(decimal x, int fractionDigits) returns decimal

Round a decimal to a specified number of digits. Returns the decimal value that has an exponent of -fractionDigits and is closest to x. If there are two such values, returns the one whose final digit is even (this is the round-to-nearest rounding mode, which is the default for IEEE and for Ballerina). A value of fractionDigits greater than 0 thus corresponds to the number of digits after the decimal point being fractionDigits; a value of 0 for fractionDigits rounds to an integer. Note that IEEE 754 roundToIntegralTiesToEven operation differs from round with fractionDigits as 0, in that roundToIntegralTiesToEven will return a value with a positive exponent when the operand has a positive exponent. Note that <int>x is the same as <int>x.round(0).

function sum(decimal... xs) returns decimal

Returns the sum of zero or more decimal values.