Custom-SLDAE-functional.md

 # Introduction
 
-Within W-SLDA Toolkit we provide a script for generating custom SLDA functional: `extensions/sldae/sldae-dev-tool.c`  
+Within the W-SLDA Toolkit, we provide a script for generating a custom SLDA functional: `extensions/sldae/sldae-dev-tool.c`  
 
-Within the script user can provide its own formulas for:
+Within the script user can provide their own formulas for:
 ```c
 double ground_state_energy (int dn, double _x, int id []);
 double chemical_potential (int dn, double _x, int id []);
@@ -10,10 +10,10 @@ double inverse_effective_mass (int dn, double _x, int id []);
 double pairing_gap (int dn, double _x, int id []);
 ```
 
-In return, the script generates a source file readable by W-SLDA Engine. Once the functional is created, it becomes available for all code within the toolkit.
+In return, the script generates a source file readable by the W-SLDA Engine. Once the functional is created, it becomes available for all code within the toolkit.
 
  
-# Example: SLDAE with the effective mass equal 1
+# Example: SLDAE with the effective mass equal to 1
 
 The function for the computation of the effective mass has been modified to:
 ```c
@@ -84,7 +84,7 @@ Parameters written to: sldae_parameters.h
 Creating file: sldae_parameters.txt
 ```
 
-Once the functional is generated user should inspect content of file `sldae_parameters.txt`. It contains following columns:
+Once the functional is generated, the user should inspect the content of the file `sldae_parameters.txt`. It contains the following columns:
 ``` bash
 # 1: lambda=a*k_F
 # 2: ground_state_energy
@@ -100,7 +100,7 @@ Once the functional is generated user should inspect content of file `sldae_para
 #12: c_functional
 #13: c_functional - PADE
 ```
-In particular, it is important to confirm that PADE approximants correctly reproduce functions generated by analytical formulas. Note that W-SLDA Engine uses Pade approximants to deliver the highest performance.
+In particular, it is important to confirm that PADE approximants correctly reproduce functions generated by analytical formulas. Note that the W-SLDA Engine uses Pade approximants to deliver the highest performance.
 ```bash
 [gabrielw@dell sldae]$ gnuplot 
 gnuplot> plot "sldae_parameters.txt" u 1:6 w l, "" u 1:7 w l  
@@ -108,10 +108,10 @@ gnuplot> plot "sldae_parameters.txt" u 1:6 w l, "" u 1:7 w l
 ```
 ![image](uploads/1a057ed2aaa2adf039c3656e0c90e9b2/image.png)
 
-Finally, file `sldae_parameters.h` should be moved to folder `hpc-engine`. From now new SLDAE functional will be used when `FUNCTIONAL=SLDAE` is selected in predefines. 
+Finally, file `sldae_parameters.h` should be moved to folder `hpc-engine`. From now on, the new SLDAE functional will be used when `FUNCTIONAL=SLDAE` is selected in predefines. 
 
 # Collection of own SLDAE-like functionals
-The information about PADE approximants for functional coefficients loded to the engine through the file `hpc-engine\sldae_functional.h`, precisely:
+The information about PADE approximants for functional coefficients loaded to the engine through the file `hpc-engine\sldae_functional.h`, precisely:
 ```c
 // Select coefficients
 #ifdef SLDAE_FORCE_A1
@@ -121,5 +121,5 @@ The information about PADE approximants for functional coefficients loded to the
 #include "sldae_parameters.h"
 #endif 
 ```
-User can modify this section to form that uploads a correct file with the desired set of coefficients. 
+The user can modify this section to upload a correct file with the desired set of coefficients.