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Technology

Fraction: keeping a numerator and denominator

Fraction represents rational numbers with a numerator and denominator. For example, Fraction(1, 3) + Fraction(1, 6) produces Fraction(1, 2), without first converting the fractions to ap...

Published22 Oct 2026
Architecture

Chiquitos: missions as settlement ensembles

Bolivia’s Jesuit Missions of the Chiquitos combine Catholic architecture with local traditions. The surviving ensembles extend beyond individual churches and are described as living her...

Published22 Oct 2026
Technology

Decimal: why the starting value matters

Decimal can represent decimal values that binary float cannot represent exactly. After from decimal import Decimal, Decimal('0.1') + Decimal('0.2') produces Decimal('0.3').

Published22 Oct 2026
Cars

City-bus collision mitigation: passengers matter too

ZF's collision mitigation system for city buses monitors objects in the vehicle's path and can warn the driver and apply the brakes. The manufacturer emphasises braking behaviour tailor...

Published22 Oct 2026
Architecture

Sucre: local traditions within colonial architecture

Historic Sucre preserves sixteenth-century religious buildings including San Lázaro, San Francisco and Santo Domingo. UNESCO emphasizes the combination of local traditions with imported...

Published22 Oct 2026
Technology

ZoneInfo: a named zone rather than a fixed offset

ZoneInfo uses the IANA database for time-zone rules. Europe/Sofia describes historical and seasonal rules rather than promising a permanent two-hour offset from UTC.

Published22 Oct 2026
Technology

Datetime: a time without a zone leaves a question open

Python distinguishes datetime objects with time-zone information from those without it. A value such as 12:00 does not by itself identify the same instant for readers in different count...

Published22 Oct 2026