diff --git a/old_solution/binary_c_api.c b/old_solution/binary_c_api.c
deleted file mode 100644
index 2361e2fdae25bd826a8fc9effa65d6d0663d9762..0000000000000000000000000000000000000000
--- a/old_solution/binary_c_api.c
+++ /dev/null
@@ -1,172 +0,0 @@
-#include "binary_c_python.h"
-//#include "binary_c_api.h"
-#include "binary_c_API.h"
-#include "binary_c_API_prototypes.h"
-#include <time.h>
-#include <sys/timeb.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-
-/*
- * apitest
- *
- * Short test programme to throw random binary systems at binary_c's
- * library via its API.
- *
- * Note that it looks more complicated than it is because I have included
- * code to capture binary_c's stdout stream and output it here.
- *
- * This code sends output to stderr : you should use apitest.sh to run it
- * and hence force output to your terminal's stdout.
- *
- * Output lines:
- *
- * APITEST .... is information about what this code is doing.
- * STATUS .... is information about the binary system.
- * BINARY_C .... is output from binary_c (see iterate_logging.c etc.)
- * which would have gone to stdout
- *
- * If you define the NO_OUTPUT macro, there will be no output except
- * the memory allocation and test system information. This is useful for speed tests,
- * but note that you may end up in a race condition where the pipe which replaces
- * stdout's buffer fills and hence the code stops.
- *
- * Note:
- * I have tested this with gcc 4.7.2 (Ubuntu 12.10) only.
- */
-
-
-// #define _CAPTURE
-#ifdef _CAPTURE
-static void show_stdout(void);
-static void capture_stdout(void);
-#endif
-
-
-/* global variables */
-int out_pipe[2];
-int stdoutwas;
-
-int main(int argc,
- char * argv[])
-{
- char * argstring = MALLOC(sizeof(char) * (size_t)STRING_LENGTH);
- snprintf(argstring,
- STRING_LENGTH,
- "binary_c M_1 %g M_2 %g separation %g orbital_period %g metallicity %g max_evolution_time %g\n",
- 20.0,
- 15.0,
- 0.0,
- 3.0,
- 0.02,
- 15000.0);
-
- char * buffer ;
- size_t nbytes;
- int out = run_binary(argstring,
- &buffer,
- &nbytes);
-
- printf("output (binary_c returned %d)\n%s\n",out,buffer);
-
- free(buffer);
-
- return out;
-}
-
-
-int run_binary(char * argstring,
- char ** buffer,
- size_t * nbytes)
-{
- /* memory for N binary systems */
- struct libbinary_c_stardata_t *stardata;
- struct libbinary_c_store_t * store = NULL;
-
- printf("argstring : %s\n",argstring);
- fflush(stdout);
-
- stardata = NULL;
- binary_c_new_system(&stardata,
- NULL,
- NULL,
- &store,
- &argstring,
- -1);
- snprintf(stardata->preferences->log_filename,
- STRING_LENGTH-1,
- "%s",
- "/dev/null");
- snprintf(stardata->preferences->api_log_filename_prefix,
- STRING_LENGTH-1,
- "%s",
- "/dev/null");
- stardata->preferences->internal_buffering = 2;
- stardata->preferences->batchmode = BATCHMODE_LIBRARY;
-
- binary_c_evolve_for_dt(stardata,
- stardata->model.max_evolution_time);
-
- /*
- * Save the buffer pointer
- */
- binary_c_buffer_info(stardata,&buffer,nbytes);
-
- /*
- * And free everything else
- */
- binary_c_free_memory(&stardata,TRUE,TRUE,FALSE);
- binary_c_free_store_contents(store);
-
- return 0;
-}
-
-int return_arglines(char ** buffer,
- size_t * nbytes)
-{
- /* memory for N binary systems */
- struct libbinary_c_stardata_t *stardata;
- struct libbinary_c_store_t * store = NULL;
-
- /* make new stardata */
- stardata = NULL;
- char * empty_str = "";
- binary_c_new_system(&stardata,
- NULL,
- NULL,
- &store,
- &empty_str,
- -1);
-
- /* disable logging */
- snprintf(stardata->preferences->log_filename,
- STRING_LENGTH-1,
- "%s",
- "/dev/null");
- snprintf(stardata->preferences->api_log_filename_prefix,
- STRING_LENGTH-1,
- "%s",
- "/dev/null");
-
- /* output to strings */
- stardata->preferences->internal_buffering = 2;
- stardata->preferences->internal_buffering_compression = 0;
- stardata->preferences->batchmode = BATCHMODE_LIBRARY;
-
- /* List available arguments */
- binary_c_list_args(stardata);
-
- /* get buffer pointer */
- binary_c_buffer_info(stardata,buffer,nbytes);
-
- /* set raw_buffer_size = -1 to prevent it being freed */
- stardata->tmpstore->raw_buffer_size = -1;
-
- /* free stardata (except the buffer) */
- binary_c_free_memory(&stardata,TRUE,TRUE,FALSE);
- binary_c_free_store_contents(store);
- return 0;
-}
\ No newline at end of file
diff --git a/old_solution/binary_c_api.h b/old_solution/binary_c_api.h
deleted file mode 100644
index 950f505aac9f6df0ba55c152c7fc80788f3d8211..0000000000000000000000000000000000000000
--- a/old_solution/binary_c_api.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#pragma once
-#ifndef BINARY_C_PYTHON_API_H
-#define BINARY_C_PYTHON_API_H
-
-/* local function prototypes */
-static void APIprintf(char * format,...);
-
-int run_binary(char * argstring,
- char ** buffer,
- size_t * nbytes);
-
-int return_arglines(char ** buffer,
- size_t * nbytes);
-
-/* C macros */
-#define BINARY_C_APITEST_VERSION 0.1
-#define APIprint(...) APIprintf(__VA_ARGS__);
-#define NO_OUTPUT
-
-#endif // BINARY_C_PYTHON_API_H
diff --git a/old_solution/binary_c_api_python.h b/old_solution/binary_c_api_python.h
deleted file mode 100644
index 950f505aac9f6df0ba55c152c7fc80788f3d8211..0000000000000000000000000000000000000000
--- a/old_solution/binary_c_api_python.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#pragma once
-#ifndef BINARY_C_PYTHON_API_H
-#define BINARY_C_PYTHON_API_H
-
-/* local function prototypes */
-static void APIprintf(char * format,...);
-
-int run_binary(char * argstring,
- char ** buffer,
- size_t * nbytes);
-
-int return_arglines(char ** buffer,
- size_t * nbytes);
-
-/* C macros */
-#define BINARY_C_APITEST_VERSION 0.1
-#define APIprint(...) APIprintf(__VA_ARGS__);
-#define NO_OUTPUT
-
-#endif // BINARY_C_PYTHON_API_H
diff --git a/old_solution/compile_script.txt b/old_solution/compile_script.txt
deleted file mode 100644
index db54dea283afd4f9e9c5c5ec801d0498c51021e2..0000000000000000000000000000000000000000
--- a/old_solution/compile_script.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-Jeff's instructions
-
-please see README.md instead!
-
-
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-------------------------------------------------------------
-
-
-
-
-
-----
-
-First, we need to compile binary_c_api.c into a shared library. We can do this by either the short way
-
-make all
-
-or the long way
-
-gcc binary_c_api.c -c -lbinary_c -lm -lc -fpic
-gcc -shared -o libbinary_c_api.so binary_c_api.o
-
-####
-
-export BINARY_C=...
-export LD_LIBRARY_PATY=$BINARY_C/src
-
-gcc `$BINARY_C/binary_c-config --flags` binary_c_api.c -c
-
-
-####
-
-Next, we need to make sure that the current directory (that containing libbinary_c_api.so) is included in $LD_LIBRARY_PATH
-export LD_LIBRARY_PATH=....
-
-
-Next, we compile the python setup.py script:
-python setup.py build_ext --inplace
-
-Within python, you should be able to now run:
-python python_API_test.py
-
-
-Or access the python functions within an ipython notebook:
-import binary_c
-binary_c.function_name()
-
-
-To remake, first, start by running
-make clean
-