From 4cfb56de610bad0132458382eb4c624102e2bf8c Mon Sep 17 00:00:00 2001 From: mow Date: Thu, 15 Jan 2026 18:44:29 +0100 Subject: [PATCH] docs: clarify zoom in/out mathematics Explain that zoom out is the mathematical inverse of zoom in (divide by 1.1 instead of multiply), making the operations reversible. --- docs/usage.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/usage.md b/docs/usage.md index 5e1e2f6..8f28416 100644 --- a/docs/usage.md +++ b/docs/usage.md @@ -34,8 +34,8 @@ The footer shows your current position (e.g., "3 / 42"). | Key | Action | Description | |:----------|:---------------------------|:------------------------------------------------------| -| `+` / `=` | Zoom in | Increase zoom by 10% | -| `-` | Zoom out | Decrease zoom by ~9% | +| `+` / `=` | Zoom in | Multiply zoom by 1.1 (increase by 10%) | +| `-` | Zoom out | Divide zoom by 1.1 (decrease by ~9%, inverse of zoom in) | | `1` | Actual size (100%) | Display image at pixel-perfect 1:1 scale | | `f` | Fit to window | Scale image to fit the window while preserving ratio |