Function accumulate_forces_batch 

pub fn accumulate_forces_batch(
    forces: &mut Vec3Batch,
    directions: &Vec3Batch,
    magnitudes: &[f64],
) -> Result<(), SimdMathError>

Accumulate forces onto a mutable force batch.

For each index i, computes:

forces[i] += directions[i] * magnitudes[i]

Errors

Returns SimdMathError::SizeMismatch if the sizes of forces, directions, or magnitudes do not match.