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Tensorics is a java framework which uses a tensor as a central object. A tensor represents a set of values placed in an N-dimensional space. Wherever you are tempted to use maps of maps, a tensor might be a good choice ;-) Tensorics provides methods to create, transform and performing calculations with those tensors.

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/**
 * Copyright (c) 2016 European Organisation for Nuclear Research (CERN), All Rights Reserved.
 */

package org.tensorics.core.functional;

/**
 * This interface represents a function that has a finite argument number in its signature.
 * 
 * @see Func1
 * @see Func2
 * @see Func3
 * @see Func4
 * @see Func5
 * @see Func6
 * @see Func7
 * @see Func8
 * @see Func9
 * @param  the return type of the function
 */
public interface FiniteArgumentFunction {

    /**
     * Transform this function to a {@link FuncN}, binding the arguments automatically.
     * 
     * @return the {@link FuncN} representation of this function
     */
    FuncN toFuncN();

    /**
     * The number of arguments that the function accepts
     * 
     * @return the number of arguments
     */
    int numberOfArgs();
}