Taylor Series expansion performance comparison:

• O/S: Ubuntu, Windows, MacOS
• No library functions employed.
• Golang, Java, Rust, Zig

Configuration:

• X = 0.5
• N = Number of terms = 4,000,000,000
• Compute: exp(X) = 1 + X + (X^2 / 2!) + (X^3 / 3!) + ... + (X^N / N!)
• = 1.648721271 on my calculator app

Rough execution elapsed times on Github Actions Ubuntu (does not include compile time):

• Golang and Rust 5.5s
• Java 12.4s
• Zig 16.4s

Measuring execution elapsed times with off-line systems is more reliable than Github Actions (varying system-wide loads). All times below are expressed in elapsed seconds.

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Xubuntu 24.04.up-to-date (Acer A515-44-R2SA, AMD Ryzen 7 4700U @ 4.1 GHz, 16GB DDR4 SDRAM)

• Golang 4.84
• Rust 4.86
• C++ 4.85
• Java 10.64
• Zig 12.27

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Windows 11 x64 (IntelUltra 7 155H @3.80 GHz, 32GB RAM)

• Rust 3.77
• Golang 4.32
• Zig 9.94
• Java 22.18 (best result of several runs)