nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/factory/BaseNDArrayFactory.java
@Override
    public INDArray randn(char order, long rows, long columns) {
        return Nd4j.getRandom().nextGaussian(order, new long[] {rows, columns});
    }
@Override
    public INDArray randn(char order, long rows, long columns) {
        return Nd4j.getRandom().nextGaussian(order, new long[] {rows, columns});
    }
Generate a random normal N(0,1) with the specified order and shape
@param order   Order of the output array
@param rows    the number of rows in the matrix
@param columns the number of columns in the matrix
@return