Scalar

Objective-C

@interface Scalar : NSObject

Swift

class Scalar : NSObject

Represents a four element vector

Properties

  • val

    Declaration

    Objective-C

    @property(readonly) NSArray<NSNumber*>* val

    Swift

    var val: [NSNumber] { get }

Constructors

  • Declaration

    Objective-C

    - (instancetype)initWithVals:(NSArray<NSNumber*>*)vals;

    Swift

    init(vals: [NSNumber])

  • Declaration

    Objective-C

    - (instancetype)initWithV0:(double)v0 v1:(double)v1 v2:(double)v2 v3:(double)v3 NS_SWIFT_NAME(init(_:_:_:_:));

    Swift

    init(_ v0: Double, _ v1: Double, _ v2: Double, _ v3: Double)

  • Declaration

    Objective-C

    - (instancetype)initWithV0:(double)v0 v1:(double)v1 v2:(double)v2 NS_SWIFT_NAME(init(_:_:_:));

    Swift

    init(_ v0: Double, _ v1: Double, _ v2: Double)

  • Declaration

    Objective-C

    - (instancetype)initWithV0:(double)v0 v1:(double)v1 NS_SWIFT_NAME(init(_:_:));

    Swift

    init(_ v0: Double, _ v1: Double)

  • Declaration

    Objective-C

    - (instancetype)initWithV0:(double)v0 NS_SWIFT_NAME(init(_:));

    Swift

    init(_ v0: Double)

Methods

  • Creates a scalar with all elements of the same value

    Declaration

    Objective-C

    + (nonnull Scalar *)all:(double)v;

    Swift

    class func all(_ v: Double) -> Scalar

    Parameters

    v

    The value to set each element to

  • Calculates per-element product with another Scalar and a scale factor

    Declaration

    Objective-C

    - (nonnull Scalar *)mul:(nonnull Scalar *)it scale:(double)scale;

    Swift

    func mul(_ it: Scalar, scale: Double) -> Scalar

    Parameters

    it

    The other Scalar
    scale

    The scale factor

  • Calculates per-element product with another Scalar

    Declaration

    Objective-C

    - (nonnull Scalar *)mul:(nonnull Scalar *)it;

    Swift

    func mul(_ it: Scalar) -> Scalar

    Parameters

    it

    The other Scalar

  • Returns (v0, -v1, -v2, -v3)

    Declaration

    Objective-C

    - (nonnull Scalar *)conj;

    Swift

    func conj() -> Scalar

  • Returns true iff v1 == v2 == v3 == 0

    Declaration

    Objective-C

    - (BOOL)isReal;

    Swift

    func isReal() -> Bool

Common Methods

  • Clone object

    Declaration

    Objective-C

    - (nonnull Scalar *)clone;

    Swift

    func clone() -> Scalar

  • Compare for equality

    Declaration

    Objective-C

    - (BOOL)isEqual:(nullable id)object;

    Swift

    func isEqual(_ object: Any?) -> Bool

    Parameters

    other

    Object to compare

  • Calculate hash value for this object

    Declaration

    Objective-C

    - (NSUInteger)hash;

    Swift

    func hash() -> UInt

  • Returns a string that describes the contents of the object

    Declaration

    Objective-C

    - (nonnull NSString *)description;

    Swift

    func description() -> String