net.algart.math.functions
Interface Func.Updatable
- All Superinterfaces:
- Func
- All Known Implementing Classes:
- InverseNumberFunc.Updatable, LinearFunc.Updatable, PowerFunc.Updatable
- Enclosing interface:
- Func
public static interface Func.Updatable
extends Func
"Updatable" mathematical function: an extension of Func interface
allowing assigning values to the function result, that leads to
corresponding correction of arguments.
Usually can be implemented for one-argument functions,
where the set(x[], newResult) method assigns
to x[0] the result of the inverse function, called for newResult.
Implementations of this interface are usually immutable and
always thread-safe: get and set methods of this interface may be freely used
while simultaneous accessing the same instance from several threads.
| Nested classes/interfaces inherited from interface net.algart.math.functions.Func |
Func.Updatable |
| Fields inherited from interface net.algart.math.functions.Func |
ABS, ABS_DIFF, HALF_X_MINUS_Y, HALF_X_PLUS_Y, HALF_Y_MINUS_X, IDENTITY, MAX, MIN, POSITIVE_DIFF, REVERSE, SELECT, SELECT_FROM_8_DIRECTIONS_2D, SELECT_IF_GREATER, SELECT_IF_GREATER_OR_EQUAL, SHIFTS_ALONG_8_DIRECTIONS_2D, UPDATABLE_IDENTITY, X_MINUS_Y, X_PLUS_Y, Y_MINUS_X |
Method Summary
void |
set(double[] x,
double newResult)
Correct some of x arguments so that
get(x) will be, as possible, equal to newResult. |
set
void set(double[] x,
double newResult)
- Correct some of x arguments so that
get(x) will be, as possible, equal to newResult.
For example, if this is one-argument function f(x),
and its inverse function is g(y) (g(f(x))=x),
then this method should assign x[0]=g(newResult).
This method does not guarantee the precise equality
get(x)==newResult. (Usually, it is impossible due to
limited precision of floating-point calculations.) But this method should try
to provide this equality (after its call) with, as possible, maximal possible precision.
- Parameters:
x - the function arguments.newResult - the desired function result.- Throws:
java.lang.IndexOutOfBoundsException - may be thrown if the length of x array is less
than the required number of this function arguments.