norm

std.linalg.norm · Level L1

Euclidean norm. Calls norm_sq.

‖x‖ = √(x·x)

Signature

norm(x: f64[n]) → f64[]

Structure

The function as NOVA stores it: one box per input, operation and output, and arrows that carry values. A double border marks a call to another library function; select it to open that function.

xf64[n]norm_sqsqSqrtssf64[]
  • input
  • operation
  • constant
  • call
  • output

Verification

  • Signature proven by NOVA’s shape solver, for every size.
  • Agrees with the reference np.linalg.norm(x) to 80 digits (100-digit arithmetic), on all 40 test cases.
  • All 40 float64 results inside the running error bound; the closest uses 40% of it.
  • Interpreter and NumPy backend return bit-identical results.
Accuracy in detail
correctly rounded (the float64 nearest the exact value)
93%
bit-equal to the NumPy formula in float64
100%
largest error, in units in the last place
0.71

Identity

sha256:b9f21d1977e15d2d7731748462f3cdc15cfd2e0663a81c5474943be5d277d6ea

The semantic hash of the graph. It changes when the program changes, and never when only its documentation does.