cc.redberry.core.tensor

Class FastTensors

java.lang.Object

cc.redberry.core.tensor.FastTensors

public final class FastTensors
extends java.lang.Object

Utility rare, but fast methods with tensor modifications.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
static Tensor	multiplySumElementsOnFactor(Sum sum, Tensor factor) Multiplies each element in specified sum on some factor.
static Tensor	multiplySumElementsOnFactorAndExpand(Sum sum, Tensor factor) Multiplies each element in specified sum on some factor (not a sum) and expands indexless parts.
static Tensor	multiplySumElementsOnFactors(Sum sum) Deprecated. very unsafe method without checks

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

multiplySumElementsOnFactor

public static Tensor multiplySumElementsOnFactor(Sum sum,
                                                 Tensor factor)

Multiplies each element in specified sum on some factor.

Parameters:

sum - sum

factor - factor

Returns:

resulting sum

multiplySumElementsOnFactorAndExpand

public static Tensor multiplySumElementsOnFactorAndExpand(Sum sum,
                                                          Tensor factor)

Multiplies each element in specified sum on some factor (not a sum) and expands indexless parts.

Parameters:

sum - sum

factor - factor

Returns:

resulting sum

Throws:

java.lang.IllegalArgumentException - if factor is sum

multiplySumElementsOnFactors

@Deprecated
public static Tensor multiplySumElementsOnFactors(Sum sum)

Deprecated. very unsafe method without checks