nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/ops/transforms/Transforms.java
public static INDArray sin(INDArray in, boolean copy) {
        return Nd4j.getExecutioner().execAndReturn(new Sin((copy ? in.dup() : in)));
    }
public static INDArray sin(INDArray in, boolean copy) {
        return Nd4j.getExecutioner().execAndReturn(new Sin((copy ? in.dup() : in)));
    }
Sin function
@param in
@param copy
@return