• Pixel-art Radicane, the Square-Root Gambler, on a black mug with the slogan "HALF THE ERROR. FOUR TIMES THE NIGHTS."

IndexCatalogueMug

Radicane, the Square-Root Gambler Mug

$21.99 USD
$21.99 USD
Promotion Épuisé
Size

Poisson counting: σN = √N, so relative error is 1/√N. Halving the error takes four times the counts.

The joke: The cruelty of 1/√N: precision is quadratic in suffering. The slogan on the mug reads HALF THE ERROR. FOUR TIMES THE NIGHTS.

Source: S.-D. Poisson, Recherches sur la probabilité des jugements (1837); JCGM 100:2008.

Shipping calculated at checkout by destinationMade to order, ships in ~10 days

Details

Size & material11oz · 15oz

Black glossy ceramic mug with a C-handle. Lead- and BPA-free.

  • 11oz: 0.33 l
  • 15oz: 0.44 l
CareDishwasher & microwave safe

Dishwasher safe (top rack) or hand wash. Microwave safe.

ShippingBy destination

Shipping calculated at checkout by destination.

Made to order: about 10 days of production and handling before it ships.

Delivery times & where we ship

Returns & replacements21 days

Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.

Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.

Full refund & replacement policy

Field notes

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