# bin/f64-be-at Read 64-bit float (big-endian) from a byte string at `offset`, widened to a Deft number. ## Syntax

[bin/f64-be-at $bytes $offset]

## Parameters - `$bytes` — Byte string (raw bytes carried as a Deft string). - `$offset` — 0-based byte offset ## Examples

def buf [bin/set-f64-be [bin/zeros 8] 0 3.25]
[bin/f64-be-at $buf 0] # → 3.25

## Returns Number. A negative or out-of-bounds offset returns `%Err{:message}`. ## See Also `bin/f64-at`, `bin/f64-le-at`, `bin/set-f64-be`, `bin/bytes`