diff --git a/README.md b/README.md
index 5993c28..c84e852 100644
--- a/README.md
+++ b/README.md
@@ -5,22 +5,55 @@ Rust implementation for the approximate greatest common divisor (AGCD) problem u
 *use the provided Makefile to compile the release version*
 
 ```
-approximate-gcd agcd <path to input file>
+approximate-gcd agcd <path to input file> [algorithm]
 ```
 
 Input file must have the following format:
 + first non-comment line: number of noise bits (written in decimal)
 + all the other lines, one per line: the numbers Xi (written in decimal) to find the approximate GCD of
-+ ```//``` can be used to comment a line, MUST be used at the begining of a new line and not at the end of a line containing a number
++ ```//``` can be used to comment a line, MUST be used at the begining of a new line and not at the end of a line containing a number  
+
+By default the algorithm used is L², the possibilities are:
++ 0: L² (external crate)
++ 1: BKZ with L² oracle
++ 2: DeepLLL (not working properly)
++ 3: L² (non external crate)
 
 ### generating values
 The script gen_values can be used to generate test values
 
 ```
-python gen_values.py [--noise-bits <number of noise bits>] [--number <number of values to generate>]
+usage: gen_values.py [-h] [--noise-bits NOISE_BITS] [--p-bits P_BITS] [--number NUMBER]
+
+Generate test input for AGCD computation
+
+options:
+  -h, --help            show this help message and exit
+  --noise-bits NOISE_BITS
+                        Number of noise bits (default: 5)
+  --p-bits P_BITS       Number of key bits (default: 16)
+  --number NUMBER       Number of numbers to generate (default: 20)
 ```
 
 the output can be directly written to a file
 ```
 python gen_values.py [options] > input.txt
 ```
+
+### test script
+```
+usage: script.py [-h] [--noise-bits NOISE_BITS] [--p-bits P_BITS] [--min-values MIN_VALUES] [--max-values MAX_VALUES] [--trials TRIALS]
+
+Test AGCD with varying number of test values.
+
+options:
+  -h, --help            show this help message and exit
+  --noise-bits NOISE_BITS
+                        Number of noise bits
+  --p-bits P_BITS       Number of bits for p
+  --min-values MIN_VALUES
+                        Minimum number of test values
+  --max-values MAX_VALUES
+                        Maximum number of test values
+  --trials TRIALS       Number of trials per setting
+```