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floating point

Explainer: Vectors, Accelerate and poor performance on M1 Macs

Some apps and other code doesn’t appear to run faster on M1 chips, and some even runs more slowly. Could this be a result of it not using the best acceleration for vectors and matrices?

December 18, 2021 Macs, Technology

Are there flaws in some ARM64 instructions?

Many processors like the ARM64 have instructions to perform fused multiply-add operations. Do they deliver reduced error and better performance?

July 19, 2021 Macs, Technology

Explore your App Store problems using Mints 1.4

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A new tailor-made log view shows what’s happened in interactions with the App Store, and can give clues as to the cause of delays and failures.

May 6, 2021 Macs, Technology, Updates

Floating-point numbers aren’t evenly distributed

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Close to 0.0, there are huge numbers of different floating-point Doubles, but their value gets greater, they are far fewer.

April 27, 2021 General, Macs, Technology

Explainer: numbers in macOS

All you need to understand about numbers on your Mac, both integers and floating point. Common errors and problems, from endianness to NaNs.

April 24, 2021 Macs, Technology

Can you trust floating-point arithmetic on Apple Silicon?

M1 Macs may be as fast as greased lightning, but how good is their numerical accuracy? Can it match that of Intel processors?

April 22, 2021 Macs, Technology
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