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A modern, AOT-compiled, array-first numerical programming language.

Fortran's heritage — built-in complex numbers and matrices, IEEE 754 throughout, AOT performance. Modern syntax — Scala 3-style indentation, expression-oriented, math-flavored juxtaposition (2pi, 4a*c, 3sin(2pi*t)). Fusion-aware compilation — array expressions compile to fused loops with no intermediate temporaries.

def normalize(v: [real]) =
 val mag = sqrt(sum(v * v))
 if mag == 0.0 then v
 else v / mag

The current implementation runs the language end-to-end: a tree-walking interpreter plus an AOT compiler that produces native Mac arm64 binaries (LLVM IR → clang -O1) for the full surface — scalar arithmetic, arrays + ARC + slicing + fusion, tuples and structs, lambdas + closures (val + var capture), the prelude scalar math and assertion family, higher-order array functions (map / reduce / filter), and complex numbers. Every commit verifies the AOT output byte-for-byte against the reference tree-walking interpreter (around 700 unit tests).

sbt "nexJVM/runMain io.github.edadma.nex.run run examples/fft/main.nex"
sbt "nexJVM/runMain io.github.edadma.nex.run compile examples/fft/main.nex"
./examples/fft/main

• Language specification
• Examples
• Tooling

ISC — see LICENSE.