library(numerics), special funs from crate puruspe

Cargo.lock

@@ -1528,6 +1528,16 @@ dependencies = [
  "cpufeatures",
 ]
 
+[[package]]
+name = "lambert_w"
+version = "1.2.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05dcaea43deea2259ce41aa33abf6e9ec8bc3e7c65bb222f2de618e10191b132"
+dependencies = [
+ "num-complex",
+ "num-traits",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -1867,6 +1877,15 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "num-format"
 version = "0.4.4"
@@ -2254,6 +2273,16 @@ dependencies = [
  "yansi",
 ]
 
+[[package]]
+name = "puruspe"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2692b0d5427c05a258862ef7e4ee9bbdb03b97554fae3b7fcf6b4ac4a47e034"
+dependencies = [
+ "lambert_w",
+ "num-complex",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.26.0"
@@ -2716,6 +2745,7 @@ dependencies = [
  "phf",
  "pprof",
  "proc-macro2",
+ "puruspe",
  "quote",
  "rand",
  "reqwest",