add function to compute unique direction vectors for a multi particle fit

1 files changed, 3 insertions, 0 deletions

diff --git a/src/misc.h b/src/misc.h
index 94ccee7..8450454 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -27,5 +27,8 @@ double norm_cdf(double x, double mu, double sigma);
 double mean(const double *x, size_t n);
 double std(const double *x, size_t n);
 double gamma_pdf(double x, double k, double theta);
+size_t ipow(size_t base, size_t exp);
+void product(size_t n, size_t r, size_t *result);
+void unique_vertices(int *id, size_t n, size_t npeaks, size_t *result, size_t *nvertices);
 
 #endif