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org.nd4j.linalg.api.ops.impl.transforms.Reciprocal Maven / Gradle / Ivy
package org.nd4j.linalg.api.ops.impl.transforms;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.imports.NoOpNameFoundException;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.BaseTransformOp;
import java.util.Arrays;
import java.util.List;
/**
* Created by susaneraly on 3/28/18.
*/
public class Reciprocal extends BaseTransformOp {
public Reciprocal(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2) {
super(sameDiff, i_v1, i_v2);
}
public Reciprocal(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2, boolean inPlace) {
super(sameDiff, i_v1, i_v2, inPlace);
}
public Reciprocal(SameDiff sameDiff) {
super(sameDiff);
}
public Reciprocal(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2, Object[] extraArgs) {
super(sameDiff, i_v1, i_v2, extraArgs);
}
public Reciprocal(SameDiff sameDiff, SDVariable i_v, boolean inPlace) {
super(sameDiff, i_v, inPlace);
}
public Reciprocal(SameDiff sameDiff, SDVariable i_v, int[] shape, boolean inPlace, Object[] extraArgs) {
super(sameDiff, i_v, shape, inPlace, extraArgs);
}
public Reciprocal(SameDiff sameDiff, SDVariable i_v, Object[] extraArgs) {
super(sameDiff, i_v, extraArgs);
}
public Reciprocal() {
}
public Reciprocal(INDArray x, INDArray y, INDArray z, long n) {
super(x, y, z, n);
}
public Reciprocal(INDArray x, INDArray y) {
super(x, y, x, x.lengthLong());
}
public Reciprocal(INDArray x, INDArray y, INDArray z) {
super(x, y, z, x.lengthLong());
}
@Override
public int opNum() {
return 94;
}
@Override
public String opName() {
return "Reciprocal";
}
@Override
public String onnxName() {
throw new NoOpNameFoundException("No onnx opName found for " + opName());
}
@Override
public String tensorflowName() {
return "Reciprocal";
}
@Override
public void init(INDArray x, INDArray y, INDArray z, long n) {
super.init(x, y, z, n);
}
@Override
public List doDiff(List i_v1) {
// -1/(x^2)
SDVariable g = f().pow(arg(), 2).rdiv(-1).mul(i_v1.get(0));
return Arrays.asList(g);
}
}