Function pinv_rrule 

pub fn pinv_rrule<T, C>(
    ctx: &mut C,
    tensor: &Tensor<T>,
    cotangent: &Tensor<T>,
    rcond: Option<f64>,
) -> AdResult<Tensor<T>>
where
    T: KernelLinalgScalar + ScaleTensorByRealSameShape<C> + Conjugate,
    C: TensorLinalgContextFor<T> + TensorResolveConjContextFor<T> + TensorScalarContextFor<Standard<T::Real>>,
    C::Backend: 'static,
    T::Real: KeepCountScalar,

Reverse-mode AD rule for pseudoinverse (VJP / pullback).

Examples

use tenferro_linalg::pinv_rrule;
use tenferro_prims::CpuContext;
use tenferro_tensor::{Tensor, MemoryOrder};
use tenferro_device::LogicalMemorySpace;

let col = MemoryOrder::ColumnMajor;
let mem = LogicalMemorySpace::MainMemory;
let mut ctx = CpuContext::new(1);
let a = Tensor::<f64>::zeros(&[3, 4], mem, col).unwrap();
let cotangent = Tensor::<f64>::ones(&[4, 3], mem, col).unwrap();
let grad_a = pinv_rrule(&mut ctx, &a, &cotangent, None).unwrap();