RLSE: Ver 0.39.4

- Optimize `integrate`

Author: Axect

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "peroxide"
-version = "0.39.3"
+version = "0.39.4"
 authors = ["axect <axect@outlook.kr>"]
 edition = "2018"
 description = "Rust comprehensive scientific computation library contains linear algebra, numerical analysis, statistics and machine learning tools with farmiliar syntax"
@@ -29,8 +29,8 @@ criterion = { version = "0.5.1", features = ["html_reports"] }
 
 [dependencies]
 csv = { version = "1.3", optional = true, default-features = false }
-rand = { version = "0.8", features = ["small_rng"] }
-rand_distr = "0.4"
+rand = { version = "0.9", features = ["small_rng"] }
+rand_distr = "0.5"
 order-stat = "0.1"
 puruspe = "0.4"
 matrixmultiply = { version = "0.3", features = ["threading"] }

RELEASES.md

@@ -1,3 +1,19 @@
+# Release 0.39.4 (2025-04-11)
+
+## Optimize `integrate`
+
+- Replace the output signature of `gauss_legendre_table` and `kronrod_table` to `&'static [f64]` to avoid unnecessary allocations.
+- Hard code symmetry of weights and nodes into source code to avoid unnecessary allocations.
+- New helper function - `compute_gauss_kronrod_sum_stored`
+  - Reduce the number of function calls (G+K -> K)
+- Change update method of subinterval tolerance (divide by 2 -> divide by sqrt(2))
+- These changes improve the performance of `integrate` by 1.2x - 50x (to integrate highly oscillatory functions)
+
+## Update dependencies
+
+- Update `rand` to `0.9`
+- Update `rand_distr` to `0.5`
+
 # Release 0.39.3 (2025-03-13)
 
 - Update `puruspe` to `0.4.0`