diff --git a/README.md b/README.md
index fc86fbb..db47e02 100644
--- a/README.md
+++ b/README.md
@@ -211,7 +211,8 @@ FUNCTION     | NOTES
 [p_acosh()](src/math/p_acosh.c)       | arc hyperbolic cosine  
 [p_asin()](src/math/p_asin.c)         | arc sine  
 [p_asinh()](src/math/p_asinh.c)       | arc hyperbolic sine  
-[p_cbrt()](src/math/p_cbrt.c)         | cubic root                    
+[p_cbrt()](src/math/p_cbrt.c)         | cubic root     
+[p_ceil()](src/math/p_ceil.c)         | ceiling              
 [p_cos()](src/math/p_cos.c)           | cosine  
 [p_cosh()](src/math/p_cosh.c)         | hyperbolic cosine  
 [p_div()](src/math/p_div.c)           | division  
diff --git a/include/pal_math.h b/include/pal_math.h
index e1d4bcc..fa9fec6 100644
--- a/include/pal_math.h
+++ b/include/pal_math.h
@@ -77,6 +77,21 @@
  *
  */
 
+#define p_ceil_f32( a, c, n) {           \
+    int i; float x;                      \
+    for ( i = 0; i < n; i++)             \
+      {                                  \
+       const float *pa = (a+i);          \
+             float *pc = (c+i);          \
+       x = *pa;                          \
+    *pc = (int)x + ((int)x < x);         \
+ }}
+
+
+
+
+
+
 /* Get the floor of x */
 #define M_FLOOR(x) ((int)((int)x - ((int)x > x)))
 
diff --git a/src/math/Makefile.am b/src/math/Makefile.am
index 3dea94c..9f742ee 100644
--- a/src/math/Makefile.am
+++ b/src/math/Makefile.am
@@ -16,6 +16,7 @@ libpal_math_la_SOURCES = \
     p_atan.c \
     p_atanh.c \
     p_cbrt.c \
+    p_ceil.c \
     p_cos.c \
     p_cosh.c \
     p_div.c \
diff --git a/src/math/p_ceil.c b/src/math/p_ceil.c
new file mode 100644
index 0000000..fbdf564
--- /dev/null
+++ b/src/math/p_ceil.c
@@ -0,0 +1,20 @@
+#include <pal.h>
+
+/*
+ *
+ * Compute the ceiling of a
+ *
+ * @param a     Pointer to input vector
+ *
+ * @param c     Pointer to output vector
+ *
+ * @param n     Size of 'a' and 'c' vector.
+ *
+ * @return      None
+ *
+ */
+/*
+ * in pal_math.h file 
+ * #define p_ceil_f32( a, c, n)      
+ *   
+ */
diff --git a/tests/math/Makefile.am b/tests/math/Makefile.am
index 332b441..b8bdfec 100644
--- a/tests/math/Makefile.am
+++ b/tests/math/Makefile.am
@@ -34,6 +34,7 @@ BUILT_SOURCES = \
     gold/p_atan_f32.gold.h \
     gold/p_atanh_f32.gold.h \
     gold/p_cbrt_f32.gold.h \
+    gold/p_ceil_f32.gold.h \
     gold/p_cos_f32.gold.h \
     gold/p_cosh_f32.gold.h \
     gold/p_div_f32.gold.h \
@@ -92,6 +93,7 @@ check_PROGRAMS = \
 	check_p_atan_f32 \
 	check_p_atanh_f32 \
 	check_p_cbrt_f32 \
+        check_p_ceil_f32 \
 	check_p_cos_f32 \
 	check_p_cosh_f32 \
 	check_p_div_f32 \
@@ -137,6 +139,7 @@ check_p_atan2_f32_SOURCES       = $(SIMPLE) p_atan2.c
 check_p_atan_f32_SOURCES        = $(SIMPLE) p_atan.c
 check_p_atanh_f32_SOURCES       = $(SIMPLE) p_atanh.c
 check_p_cbrt_f32_SOURCES        = $(SIMPLE) p_cbrt.c
+check_p_ceil_f32_SOURCES        = $(SIMPLE) p_ceil.c
 check_p_cos_f32_SOURCES         = $(SIMPLE) p_cos.c
 check_p_cosh_f32_SOURCES        = $(SIMPLE) p_cosh.c
 check_p_div_f32_SOURCES         = $(SIMPLE)
@@ -182,6 +185,7 @@ check_p_atan2_f32_CFLAGS        = -DFUNCTION=p_atan2_f32   -DIS_BINARY
 check_p_atan_f32_CFLAGS         = -DFUNCTION=p_atan_f32    -DIS_UNARY
 check_p_atanh_f32_CFLAGS        = -DFUNCTION=p_atanh_f32   -DIS_UNARY
 check_p_cbrt_f32_CFLAGS         = -DFUNCTION=p_cbrt_f32    -DIS_UNARY
+check_p_ceil_f32_CFLAGS         = -DFUNCTION=p_ceil_f32    -DIS_UNARY
 check_p_cos_f32_CFLAGS          = -DFUNCTION=p_cos_f32     -DIS_UNARY
 check_p_cosh_f32_CFLAGS         = -DFUNCTION=p_cosh_f32    -DIS_UNARY
 check_p_div_f32_CFLAGS          = -DFUNCTION=p_div_f32     -DIS_BINARY
@@ -229,6 +233,7 @@ check_p_atan2_f32_LDFLAGS       = $(CHECKLDFLAGS)
 check_p_atan_f32_LDFLAGS        = $(CHECKLDFLAGS)
 check_p_atanh_f32_LDFLAGS       = $(CHECKLDFLAGS)
 check_p_cbrt_f32_LDFLAGS        = $(CHECKLDFLAGS)
+check_p_ceil_f32_LDFLAGS        = $(CHECKLDFLAGS)
 check_p_cos_f32_LDFLAGS         = $(CHECKLDFLAGS)
 check_p_cosh_f32_LDFLAGS        = $(CHECKLDFLAGS)
 check_p_div_f32_LDFLAGS         = $(CHECKLDFLAGS)
diff --git a/tests/math/gold/p_ceil_f32.dat b/tests/math/gold/p_ceil_f32.dat
new file mode 100644
index 0000000..cd01e98
--- /dev/null
+++ b/tests/math/gold/p_ceil_f32.dat
@@ -0,0 +1,100 @@
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+8.655462,0.000000,0.000000,9.000000
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diff --git a/tests/math/p_ceil.c b/tests/math/p_ceil.c
new file mode 100644
index 0000000..0878f4d
--- /dev/null
+++ b/tests/math/p_ceil.c
@@ -0,0 +1,10 @@
+#include <math.h>
+#include "simple.h"
+
+void generate_ref(float *out, size_t n)
+{
+    size_t i;
+
+    for (i = 0; i < n; i++)
+        out[i] = ceilf(ai[i]);
+}