diff --git a/generator/src/gen/common/mod.rs b/generator/src/generate/common/mod.rs
similarity index 100%
rename from generator/src/gen/common/mod.rs
rename to generator/src/generate/common/mod.rs
diff --git a/generator/src/gen/common/reduce_pi_2_large.rs b/generator/src/generate/common/reduce_pi_2_large.rs
similarity index 100%
rename from generator/src/gen/common/reduce_pi_2_large.rs
rename to generator/src/generate/common/reduce_pi_2_large.rs
diff --git a/generator/src/gen/f32/asin_acos.rs b/generator/src/generate/f32/asin_acos.rs
similarity index 100%
rename from generator/src/gen/f32/asin_acos.rs
rename to generator/src/generate/f32/asin_acos.rs
diff --git a/generator/src/gen/f32/atan.rs b/generator/src/generate/f32/atan.rs
similarity index 100%
rename from generator/src/gen/f32/atan.rs
rename to generator/src/generate/f32/atan.rs
diff --git a/generator/src/gen/f32/cbrt.rs b/generator/src/generate/f32/cbrt.rs
similarity index 100%
rename from generator/src/gen/f32/cbrt.rs
rename to generator/src/generate/f32/cbrt.rs
diff --git a/generator/src/gen/f32/div_pi.rs b/generator/src/generate/f32/div_pi.rs
similarity index 100%
rename from generator/src/gen/f32/div_pi.rs
rename to generator/src/generate/f32/div_pi.rs
diff --git a/generator/src/gen/f32/exp.rs b/generator/src/generate/f32/exp.rs
similarity index 100%
rename from generator/src/gen/f32/exp.rs
rename to generator/src/generate/f32/exp.rs
diff --git a/generator/src/gen/f32/exp10.rs b/generator/src/generate/f32/exp10.rs
similarity index 100%
rename from generator/src/gen/f32/exp10.rs
rename to generator/src/generate/f32/exp10.rs
diff --git a/generator/src/gen/f32/exp2.rs b/generator/src/generate/f32/exp2.rs
similarity index 100%
rename from generator/src/gen/f32/exp2.rs
rename to generator/src/generate/f32/exp2.rs
diff --git a/generator/src/gen/f32/gamma.rs b/generator/src/generate/f32/gamma.rs
similarity index 100%
rename from generator/src/gen/f32/gamma.rs
rename to generator/src/generate/f32/gamma.rs
diff --git a/generator/src/gen/f32/log.rs b/generator/src/generate/f32/log.rs
similarity index 100%
rename from generator/src/gen/f32/log.rs
rename to generator/src/generate/f32/log.rs
diff --git a/generator/src/gen/f32/log10.rs b/generator/src/generate/f32/log10.rs
similarity index 100%
rename from generator/src/gen/f32/log10.rs
rename to generator/src/generate/f32/log10.rs
diff --git a/generator/src/gen/f32/log2.rs b/generator/src/generate/f32/log2.rs
similarity index 100%
rename from generator/src/gen/f32/log2.rs
rename to generator/src/generate/f32/log2.rs
diff --git a/generator/src/gen/f32/mod.rs b/generator/src/generate/f32/mod.rs
similarity index 100%
rename from generator/src/gen/f32/mod.rs
rename to generator/src/generate/f32/mod.rs
diff --git a/generator/src/gen/f32/rad_to_deg.rs b/generator/src/generate/f32/rad_to_deg.rs
similarity index 100%
rename from generator/src/gen/f32/rad_to_deg.rs
rename to generator/src/generate/f32/rad_to_deg.rs
diff --git a/generator/src/gen/f32/reduce_90_deg.rs b/generator/src/generate/f32/reduce_90_deg.rs
similarity index 100%
rename from generator/src/gen/f32/reduce_90_deg.rs
rename to generator/src/generate/f32/reduce_90_deg.rs
diff --git a/generator/src/gen/f32/reduce_half_mul_pi.rs b/generator/src/generate/f32/reduce_half_mul_pi.rs
similarity index 100%
rename from generator/src/gen/f32/reduce_half_mul_pi.rs
rename to generator/src/generate/f32/reduce_half_mul_pi.rs
diff --git a/generator/src/gen/f32/reduce_pi_2.rs b/generator/src/generate/f32/reduce_pi_2.rs
similarity index 100%
rename from generator/src/gen/f32/reduce_pi_2.rs
rename to generator/src/generate/f32/reduce_pi_2.rs
diff --git a/generator/src/gen/f32/sin_cos.rs b/generator/src/generate/f32/sin_cos.rs
similarity index 100%
rename from generator/src/gen/f32/sin_cos.rs
rename to generator/src/generate/f32/sin_cos.rs
diff --git a/generator/src/gen/f32/tan.rs b/generator/src/generate/f32/tan.rs
similarity index 100%
rename from generator/src/gen/f32/tan.rs
rename to generator/src/generate/f32/tan.rs
diff --git a/generator/src/gen/f64/asin_acos.rs b/generator/src/generate/f64/asin_acos.rs
similarity index 100%
rename from generator/src/gen/f64/asin_acos.rs
rename to generator/src/generate/f64/asin_acos.rs
diff --git a/generator/src/gen/f64/atan.rs b/generator/src/generate/f64/atan.rs
similarity index 100%
rename from generator/src/gen/f64/atan.rs
rename to generator/src/generate/f64/atan.rs
diff --git a/generator/src/gen/f64/cbrt.rs b/generator/src/generate/f64/cbrt.rs
similarity index 100%
rename from generator/src/gen/f64/cbrt.rs
rename to generator/src/generate/f64/cbrt.rs
diff --git a/generator/src/gen/f64/div_pi.rs b/generator/src/generate/f64/div_pi.rs
similarity index 100%
rename from generator/src/gen/f64/div_pi.rs
rename to generator/src/generate/f64/div_pi.rs
diff --git a/generator/src/gen/f64/exp.rs b/generator/src/generate/f64/exp.rs
similarity index 100%
rename from generator/src/gen/f64/exp.rs
rename to generator/src/generate/f64/exp.rs
diff --git a/generator/src/gen/f64/exp10.rs b/generator/src/generate/f64/exp10.rs
similarity index 100%
rename from generator/src/gen/f64/exp10.rs
rename to generator/src/generate/f64/exp10.rs
diff --git a/generator/src/gen/f64/exp2.rs b/generator/src/generate/f64/exp2.rs
similarity index 100%
rename from generator/src/gen/f64/exp2.rs
rename to generator/src/generate/f64/exp2.rs
diff --git a/generator/src/gen/f64/gamma.rs b/generator/src/generate/f64/gamma.rs
similarity index 100%
rename from generator/src/gen/f64/gamma.rs
rename to generator/src/generate/f64/gamma.rs
diff --git a/generator/src/gen/f64/log.rs b/generator/src/generate/f64/log.rs
similarity index 100%
rename from generator/src/gen/f64/log.rs
rename to generator/src/generate/f64/log.rs
diff --git a/generator/src/gen/f64/log10.rs b/generator/src/generate/f64/log10.rs
similarity index 100%
rename from generator/src/gen/f64/log10.rs
rename to generator/src/generate/f64/log10.rs
diff --git a/generator/src/gen/f64/log2.rs b/generator/src/generate/f64/log2.rs
similarity index 100%
rename from generator/src/gen/f64/log2.rs
rename to generator/src/generate/f64/log2.rs
diff --git a/generator/src/gen/f64/mod.rs b/generator/src/generate/f64/mod.rs
similarity index 100%
rename from generator/src/gen/f64/mod.rs
rename to generator/src/generate/f64/mod.rs
diff --git a/generator/src/gen/f64/rad_to_deg.rs b/generator/src/generate/f64/rad_to_deg.rs
similarity index 100%
rename from generator/src/gen/f64/rad_to_deg.rs
rename to generator/src/generate/f64/rad_to_deg.rs
diff --git a/generator/src/gen/f64/reduce_90_deg.rs b/generator/src/generate/f64/reduce_90_deg.rs
similarity index 100%
rename from generator/src/gen/f64/reduce_90_deg.rs
rename to generator/src/generate/f64/reduce_90_deg.rs
diff --git a/generator/src/gen/f64/reduce_half_mul_pi.rs b/generator/src/generate/f64/reduce_half_mul_pi.rs
similarity index 100%
rename from generator/src/gen/f64/reduce_half_mul_pi.rs
rename to generator/src/generate/f64/reduce_half_mul_pi.rs
diff --git a/generator/src/gen/f64/reduce_pi_2.rs b/generator/src/generate/f64/reduce_pi_2.rs
similarity index 100%
rename from generator/src/gen/f64/reduce_pi_2.rs
rename to generator/src/generate/f64/reduce_pi_2.rs
diff --git a/generator/src/gen/f64/sin_cos.rs b/generator/src/generate/f64/sin_cos.rs
similarity index 100%
rename from generator/src/gen/f64/sin_cos.rs
rename to generator/src/generate/f64/sin_cos.rs
diff --git a/generator/src/gen/f64/tan.rs b/generator/src/generate/f64/tan.rs
similarity index 100%
rename from generator/src/gen/f64/tan.rs
rename to generator/src/generate/f64/tan.rs
diff --git a/generator/src/gen/mod.rs b/generator/src/generate/mod.rs
similarity index 100%
rename from generator/src/gen/mod.rs
rename to generator/src/generate/mod.rs
diff --git a/generator/src/main.rs b/generator/src/main.rs
index 54094a3..8d40715 100644
--- a/generator/src/main.rs
+++ b/generator/src/main.rs
@@ -9,7 +9,7 @@
 
 use std::process::ExitCode;
 
-mod gen;
+mod generate;
 mod julia;
 mod sollya;
 
@@ -19,77 +19,77 @@ fn main() -> ExitCode {
         match &*arg.to_string_lossy() {
             // common
             "common::reduce_pi_2_large::FRAC_2_PI_LARGE" => {
-                gen::common::reduce_pi_2_large::gen_frac_2_pi_large();
+                generate::common::reduce_pi_2_large::gen_frac_2_pi_large();
             }
             "common::reduce_pi_2_large::FRAC_PI_2_MEDIUM" => {
-                gen::common::reduce_pi_2_large::gen_frac_pi_2_medium();
+                generate::common::reduce_pi_2_large::gen_frac_pi_2_medium();
             }
 
             // f32
-            "f32::consts" => gen::f32::gen_consts(),
-            "f32::cbrt::consts" => gen::f32::cbrt::gen_consts(),
-            "f32::cbrt::inv_cbrt_poly" => gen::f32::cbrt::gen_inv_cbrt_poly(),
-            "f32::div_pi::consts" => gen::f32::div_pi::gen_consts(),
-            "f32::exp::consts" => gen::f32::exp::gen_consts(),
-            "f32::exp::exp_special_poly" => gen::f32::exp::gen_exp_special_poly(),
-            "f32::exp::exp_m1_special_poly" => gen::f32::exp::gen_exp_m1_special_poly(),
-            "f32::exp2::consts" => gen::f32::exp2::gen_consts(),
-            "f32::exp10::consts" => gen::f32::exp10::gen_consts(),
-            "f32::gamma::consts" => gen::f32::gamma::gen_consts(),
-            "f32::gamma::lgamma_poly_1" => gen::f32::gamma::gen_lgamma_poly_1(),
-            "f32::gamma::lgamma_poly_2" => gen::f32::gamma::gen_lgamma_poly_2(),
-            "f32::gamma::special_poly" => gen::f32::gamma::gen_special_poly(),
-            "f32::log::consts" => gen::f32::log::gen_consts(),
-            "f32::log::log_special_poly" => gen::f32::log::gen_log_special_poly(),
-            "f32::log::log_special_poly_ex" => gen::f32::log::gen_log_special_poly_ex(),
-            "f32::log2::consts" => gen::f32::log2::gen_consts(),
-            "f32::log10::consts" => gen::f32::log10::gen_consts(),
-            "f32::rad_to_deg::consts" => gen::f32::rad_to_deg::gen_consts(),
-            "f32::reduce_90_deg::consts" => gen::f32::reduce_90_deg::gen_consts(),
-            "f32::reduce_half_mul_pi::consts" => gen::f32::reduce_half_mul_pi::gen_consts(),
-            "f32::reduce_pi_2::consts" => gen::f32::reduce_pi_2::gen_consts(),
-            "f32::sin_cos::consts" => gen::f32::sin_cos::gen_consts(),
-            "f32::sin_cos::sin_poly" => gen::f32::sin_cos::gen_sin_poly(),
-            "f32::sin_cos::sin_poly_ex" => gen::f32::sin_cos::gen_sin_poly_ex(),
-            "f32::sin_cos::cos_poly" => gen::f32::sin_cos::gen_cos_poly(),
-            "f32::tan::tan_poly" => gen::f32::tan::gen_tan_poly(),
-            "f32::asin_acos::consts" => gen::f32::asin_acos::gen_consts(),
-            "f32::asin_acos::asin_poly" => gen::f32::asin_acos::gen_asin_poly(),
-            "f32::atan::consts" => gen::f32::atan::gen_consts(),
-            "f32::atan::atan_poly" => gen::f32::atan::gen_atan_poly(),
+            "f32::consts" => generate::f32::gen_consts(),
+            "f32::cbrt::consts" => generate::f32::cbrt::gen_consts(),
+            "f32::cbrt::inv_cbrt_poly" => generate::f32::cbrt::gen_inv_cbrt_poly(),
+            "f32::div_pi::consts" => generate::f32::div_pi::gen_consts(),
+            "f32::exp::consts" => generate::f32::exp::gen_consts(),
+            "f32::exp::exp_special_poly" => generate::f32::exp::gen_exp_special_poly(),
+            "f32::exp::exp_m1_special_poly" => generate::f32::exp::gen_exp_m1_special_poly(),
+            "f32::exp2::consts" => generate::f32::exp2::gen_consts(),
+            "f32::exp10::consts" => generate::f32::exp10::gen_consts(),
+            "f32::gamma::consts" => generate::f32::gamma::gen_consts(),
+            "f32::gamma::lgamma_poly_1" => generate::f32::gamma::gen_lgamma_poly_1(),
+            "f32::gamma::lgamma_poly_2" => generate::f32::gamma::gen_lgamma_poly_2(),
+            "f32::gamma::special_poly" => generate::f32::gamma::gen_special_poly(),
+            "f32::log::consts" => generate::f32::log::gen_consts(),
+            "f32::log::log_special_poly" => generate::f32::log::gen_log_special_poly(),
+            "f32::log::log_special_poly_ex" => generate::f32::log::gen_log_special_poly_ex(),
+            "f32::log2::consts" => generate::f32::log2::gen_consts(),
+            "f32::log10::consts" => generate::f32::log10::gen_consts(),
+            "f32::rad_to_deg::consts" => generate::f32::rad_to_deg::gen_consts(),
+            "f32::reduce_90_deg::consts" => generate::f32::reduce_90_deg::gen_consts(),
+            "f32::reduce_half_mul_pi::consts" => generate::f32::reduce_half_mul_pi::gen_consts(),
+            "f32::reduce_pi_2::consts" => generate::f32::reduce_pi_2::gen_consts(),
+            "f32::sin_cos::consts" => generate::f32::sin_cos::gen_consts(),
+            "f32::sin_cos::sin_poly" => generate::f32::sin_cos::gen_sin_poly(),
+            "f32::sin_cos::sin_poly_ex" => generate::f32::sin_cos::gen_sin_poly_ex(),
+            "f32::sin_cos::cos_poly" => generate::f32::sin_cos::gen_cos_poly(),
+            "f32::tan::tan_poly" => generate::f32::tan::gen_tan_poly(),
+            "f32::asin_acos::consts" => generate::f32::asin_acos::gen_consts(),
+            "f32::asin_acos::asin_poly" => generate::f32::asin_acos::gen_asin_poly(),
+            "f32::atan::consts" => generate::f32::atan::gen_consts(),
+            "f32::atan::atan_poly" => generate::f32::atan::gen_atan_poly(),
 
             // f64
-            "f64::consts" => gen::f64::gen_consts(),
-            "f64::cbrt::consts" => gen::f64::cbrt::gen_consts(),
-            "f64::cbrt::inv_cbrt_poly" => gen::f64::cbrt::gen_inv_cbrt_poly(),
-            "f64::div_pi::consts" => gen::f64::div_pi::gen_consts(),
-            "f64::exp::consts" => gen::f64::exp::gen_consts(),
-            "f64::exp::exp_special_poly" => gen::f64::exp::gen_exp_special_poly(),
-            "f64::exp::exp_m1_special_poly" => gen::f64::exp::gen_exp_m1_special_poly(),
-            "f64::exp2::consts" => gen::f64::exp2::gen_consts(),
-            "f64::exp10::consts" => gen::f64::exp10::gen_consts(),
-            "f64::gamma::consts" => gen::f64::gamma::gen_consts(),
-            "f64::gamma::lgamma_poly_1" => gen::f64::gamma::gen_lgamma_poly_1(),
-            "f64::gamma::lgamma_poly_2" => gen::f64::gamma::gen_lgamma_poly_2(),
-            "f64::gamma::special_poly" => gen::f64::gamma::gen_special_poly(),
-            "f64::log::consts" => gen::f64::log::gen_consts(),
-            "f64::log::log_special_poly" => gen::f64::log::gen_log_special_poly(),
-            "f64::log::log_special_poly_ex" => gen::f64::log::gen_log_special_poly_ex(),
-            "f64::log2::consts" => gen::f64::log2::gen_consts(),
-            "f64::log10::consts" => gen::f64::log10::gen_consts(),
-            "f64::rad_to_deg::consts" => gen::f64::rad_to_deg::gen_consts(),
-            "f64::reduce_90_deg::consts" => gen::f64::reduce_90_deg::gen_consts(),
-            "f64::reduce_half_mul_pi::consts" => gen::f64::reduce_half_mul_pi::gen_consts(),
-            "f64::reduce_pi_2::consts" => gen::f64::reduce_pi_2::gen_consts(),
-            "f64::sin_cos::consts" => gen::f64::sin_cos::gen_consts(),
-            "f64::sin_cos::sin_poly" => gen::f64::sin_cos::gen_sin_poly(),
-            "f64::sin_cos::sin_poly_ex" => gen::f64::sin_cos::gen_sin_poly_ex(),
-            "f64::sin_cos::cos_poly" => gen::f64::sin_cos::gen_cos_poly(),
-            "f64::tan::tan_poly" => gen::f64::tan::gen_tan_poly(),
-            "f64::asin_acos::consts" => gen::f64::asin_acos::gen_consts(),
-            "f64::asin_acos::asin_poly" => gen::f64::asin_acos::gen_asin_poly(),
-            "f64::atan::consts" => gen::f64::atan::gen_consts(),
-            "f64::atan::atan_poly" => gen::f64::atan::gen_atan_poly(),
+            "f64::consts" => generate::f64::gen_consts(),
+            "f64::cbrt::consts" => generate::f64::cbrt::gen_consts(),
+            "f64::cbrt::inv_cbrt_poly" => generate::f64::cbrt::gen_inv_cbrt_poly(),
+            "f64::div_pi::consts" => generate::f64::div_pi::gen_consts(),
+            "f64::exp::consts" => generate::f64::exp::gen_consts(),
+            "f64::exp::exp_special_poly" => generate::f64::exp::gen_exp_special_poly(),
+            "f64::exp::exp_m1_special_poly" => generate::f64::exp::gen_exp_m1_special_poly(),
+            "f64::exp2::consts" => generate::f64::exp2::gen_consts(),
+            "f64::exp10::consts" => generate::f64::exp10::gen_consts(),
+            "f64::gamma::consts" => generate::f64::gamma::gen_consts(),
+            "f64::gamma::lgamma_poly_1" => generate::f64::gamma::gen_lgamma_poly_1(),
+            "f64::gamma::lgamma_poly_2" => generate::f64::gamma::gen_lgamma_poly_2(),
+            "f64::gamma::special_poly" => generate::f64::gamma::gen_special_poly(),
+            "f64::log::consts" => generate::f64::log::gen_consts(),
+            "f64::log::log_special_poly" => generate::f64::log::gen_log_special_poly(),
+            "f64::log::log_special_poly_ex" => generate::f64::log::gen_log_special_poly_ex(),
+            "f64::log2::consts" => generate::f64::log2::gen_consts(),
+            "f64::log10::consts" => generate::f64::log10::gen_consts(),
+            "f64::rad_to_deg::consts" => generate::f64::rad_to_deg::gen_consts(),
+            "f64::reduce_90_deg::consts" => generate::f64::reduce_90_deg::gen_consts(),
+            "f64::reduce_half_mul_pi::consts" => generate::f64::reduce_half_mul_pi::gen_consts(),
+            "f64::reduce_pi_2::consts" => generate::f64::reduce_pi_2::gen_consts(),
+            "f64::sin_cos::consts" => generate::f64::sin_cos::gen_consts(),
+            "f64::sin_cos::sin_poly" => generate::f64::sin_cos::gen_sin_poly(),
+            "f64::sin_cos::sin_poly_ex" => generate::f64::sin_cos::gen_sin_poly_ex(),
+            "f64::sin_cos::cos_poly" => generate::f64::sin_cos::gen_cos_poly(),
+            "f64::tan::tan_poly" => generate::f64::tan::gen_tan_poly(),
+            "f64::asin_acos::consts" => generate::f64::asin_acos::gen_consts(),
+            "f64::asin_acos::asin_poly" => generate::f64::asin_acos::gen_asin_poly(),
+            "f64::atan::consts" => generate::f64::atan::gen_consts(),
+            "f64::atan::atan_poly" => generate::f64::atan::gen_atan_poly(),
 
             arg => {
                 eprintln!("invalid argument {arg:?}");