diff --git a/build/test/cache/test_exp2.c b/build/test/cache/test_exp2.c
new file mode 100644
index 0000000..d2d8c6e
--- /dev/null
+++ b/build/test/cache/test_exp2.c
@@ -0,0 +1,51 @@
+#include "src/main/c/Calculator/calculator.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+                void setUp(void){
+
+
+
+                }
+
+                void tearDown(void){
+
+                }
+
+
+
+
+
+                void test_fmin(void){
+
+
+
+                    double num1 =1;
+
+                    double num2 = 8;
+
+                    double result;
+
+                    double min = fmin(1,8);
+
+
+
+
+
+                     result = min;
+
+
+
+
+
+                    UnityAssertEqualNumber((UNITY_INT)((1)), (UNITY_INT)((result)), (
+
+                   ((void *)0)
+
+                   ), (UNITY_UINT)(24), UNITY_DISPLAY_STYLE_INT);
+
+                }
diff --git a/build/test/cache/test_fmin.c b/build/test/cache/test_fmin.c
new file mode 100644
index 0000000..0e24187
--- /dev/null
+++ b/build/test/cache/test_fmin.c
@@ -0,0 +1,49 @@
+#include "src/main/c/Calculator/calculator.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+                void setUp(void){
+
+
+
+                }
+
+                void tearDown(void){
+
+                }
+
+
+
+
+
+                void test_fmin(void){
+
+
+
+                    double num1;
+
+                    double num2;
+
+                    double result = fmin(1,16);
+
+
+
+
+
+                    return result;
+
+
+
+
+
+                    UnityAssertEqualNumber((UNITY_INT)((1)), (UNITY_INT)((result)), (
+
+                   ((void *)0)
+
+                   ), (UNITY_UINT)(23), UNITY_DISPLAY_STYLE_INT);
+
+                }
diff --git a/build/test/dependencies/test_exp2.d b/build/test/dependencies/test_exp2.d
new file mode 100644
index 0000000..c1106c6
--- /dev/null
+++ b/build/test/dependencies/test_exp2.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_exp2.o: test/Calculator/test_exp2.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h \
+ src/main/c/Calculator/calculator.h
diff --git a/build/test/dependencies/test_exp2_runner.d b/build/test/dependencies/test_exp2_runner.d
new file mode 100644
index 0000000..898af76
--- /dev/null
+++ b/build/test/dependencies/test_exp2_runner.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_exp2_runner.o: \
+ build/test/runners/test_exp2_runner.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/build/test/dependencies/test_fmin.d b/build/test/dependencies/test_fmin.d
new file mode 100644
index 0000000..b8dafae
--- /dev/null
+++ b/build/test/dependencies/test_fmin.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_fmin.o: test/Calculator/test_fmin.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h \
+ src/main/c/Calculator/calculator.h
diff --git a/build/test/dependencies/test_fmin_runner.d b/build/test/dependencies/test_fmin_runner.d
new file mode 100644
index 0000000..e674172
--- /dev/null
+++ b/build/test/dependencies/test_fmin_runner.d
@@ -0,0 +1,4 @@
+build/test/out/c/test_fmin_runner.o: \
+ build/test/runners/test_fmin_runner.c \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h \
+ /var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity_internals.h
diff --git a/build/test/out/c/calculator.o b/build/test/out/c/calculator.o
index 81bccbb..ca1b284 100644
Binary files a/build/test/out/c/calculator.o and b/build/test/out/c/calculator.o differ
diff --git a/build/test/out/c/test_exp2.o b/build/test/out/c/test_exp2.o
new file mode 100644
index 0000000..d29efbc
Binary files /dev/null and b/build/test/out/c/test_exp2.o differ
diff --git a/build/test/out/c/test_exp2_runner.o b/build/test/out/c/test_exp2_runner.o
new file mode 100644
index 0000000..e2f3c24
Binary files /dev/null and b/build/test/out/c/test_exp2_runner.o differ
diff --git a/build/test/out/c/test_fmin.o b/build/test/out/c/test_fmin.o
new file mode 100644
index 0000000..a3b725f
Binary files /dev/null and b/build/test/out/c/test_fmin.o differ
diff --git a/build/test/out/c/test_fmin_runner.o b/build/test/out/c/test_fmin_runner.o
new file mode 100644
index 0000000..d2f9312
Binary files /dev/null and b/build/test/out/c/test_fmin_runner.o differ
diff --git a/build/test/out/test_cbrt.out b/build/test/out/test_cbrt.out
index c69a12b..58d2490 100755
Binary files a/build/test/out/test_cbrt.out and b/build/test/out/test_cbrt.out differ
diff --git a/build/test/out/test_ceil.out b/build/test/out/test_ceil.out
index 80995b2..12a55be 100755
Binary files a/build/test/out/test_ceil.out and b/build/test/out/test_ceil.out differ
diff --git a/build/test/out/test_divide.out b/build/test/out/test_divide.out
index 895a8c9..bb50b6e 100755
Binary files a/build/test/out/test_divide.out and b/build/test/out/test_divide.out differ
diff --git a/build/test/out/test_exp.out b/build/test/out/test_exp.out
index ea71135..7263b71 100755
Binary files a/build/test/out/test_exp.out and b/build/test/out/test_exp.out differ
diff --git a/build/test/out/test_exp2.out b/build/test/out/test_exp2.out
new file mode 100755
index 0000000..cdc55af
Binary files /dev/null and b/build/test/out/test_exp2.out differ
diff --git a/build/test/out/test_factorial.out b/build/test/out/test_factorial.out
index 9e9e8b3..dd3debf 100755
Binary files a/build/test/out/test_factorial.out and b/build/test/out/test_factorial.out differ
diff --git a/build/test/out/test_floor.out b/build/test/out/test_floor.out
index 7db79b6..a74209f 100755
Binary files a/build/test/out/test_floor.out and b/build/test/out/test_floor.out differ
diff --git a/build/test/out/test_fmax.out b/build/test/out/test_fmax.out
index 942e627..5ce749e 100755
Binary files a/build/test/out/test_fmax.out and b/build/test/out/test_fmax.out differ
diff --git a/build/test/out/test_fmin.out b/build/test/out/test_fmin.out
new file mode 100755
index 0000000..b3b888d
Binary files /dev/null and b/build/test/out/test_fmin.out differ
diff --git a/build/test/out/test_log.out b/build/test/out/test_log.out
index 28be84a..90fef5a 100755
Binary files a/build/test/out/test_log.out and b/build/test/out/test_log.out differ
diff --git a/build/test/out/test_log10.out b/build/test/out/test_log10.out
index b959e2a..114d848 100755
Binary files a/build/test/out/test_log10.out and b/build/test/out/test_log10.out differ
diff --git a/build/test/out/test_mod.out b/build/test/out/test_mod.out
index 1a310eb..f77940a 100755
Binary files a/build/test/out/test_mod.out and b/build/test/out/test_mod.out differ
diff --git a/build/test/out/test_pow.out b/build/test/out/test_pow.out
index eb1e5b2..aba391d 100755
Binary files a/build/test/out/test_pow.out and b/build/test/out/test_pow.out differ
diff --git a/build/test/out/test_round.out b/build/test/out/test_round.out
index b86de40..8c1a33f 100755
Binary files a/build/test/out/test_round.out and b/build/test/out/test_round.out differ
diff --git a/build/test/out/test_sin.out b/build/test/out/test_sin.out
index c9d94d2..fb70f0d 100755
Binary files a/build/test/out/test_sin.out and b/build/test/out/test_sin.out differ
diff --git a/build/test/out/test_sqrt.out b/build/test/out/test_sqrt.out
index 92d998e..35fd11f 100755
Binary files a/build/test/out/test_sqrt.out and b/build/test/out/test_sqrt.out differ
diff --git a/build/test/out/test_subtract.out b/build/test/out/test_subtract.out
index 332fb55..e4e3173 100755
Binary files a/build/test/out/test_subtract.out and b/build/test/out/test_subtract.out differ
diff --git a/build/test/preprocess/files/test_exp2.c b/build/test/preprocess/files/test_exp2.c
new file mode 100644
index 0000000..d2d8c6e
--- /dev/null
+++ b/build/test/preprocess/files/test_exp2.c
@@ -0,0 +1,51 @@
+#include "src/main/c/Calculator/calculator.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+                void setUp(void){
+
+
+
+                }
+
+                void tearDown(void){
+
+                }
+
+
+
+
+
+                void test_fmin(void){
+
+
+
+                    double num1 =1;
+
+                    double num2 = 8;
+
+                    double result;
+
+                    double min = fmin(1,8);
+
+
+
+
+
+                     result = min;
+
+
+
+
+
+                    UnityAssertEqualNumber((UNITY_INT)((1)), (UNITY_INT)((result)), (
+
+                   ((void *)0)
+
+                   ), (UNITY_UINT)(24), UNITY_DISPLAY_STYLE_INT);
+
+                }
diff --git a/build/test/preprocess/files/test_fmin.c b/build/test/preprocess/files/test_fmin.c
new file mode 100644
index 0000000..0e24187
--- /dev/null
+++ b/build/test/preprocess/files/test_fmin.c
@@ -0,0 +1,49 @@
+#include "src/main/c/Calculator/calculator.h"
+#include "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+
+
+
+
+
+
+                void setUp(void){
+
+
+
+                }
+
+                void tearDown(void){
+
+                }
+
+
+
+
+
+                void test_fmin(void){
+
+
+
+                    double num1;
+
+                    double num2;
+
+                    double result = fmin(1,16);
+
+
+
+
+
+                    return result;
+
+
+
+
+
+                    UnityAssertEqualNumber((UNITY_INT)((1)), (UNITY_INT)((result)), (
+
+                   ((void *)0)
+
+                   ), (UNITY_UINT)(23), UNITY_DISPLAY_STYLE_INT);
+
+                }
diff --git a/build/test/preprocess/includes/test_exp2.c b/build/test/preprocess/includes/test_exp2.c
new file mode 100644
index 0000000..f2efae7
--- /dev/null
+++ b/build/test/preprocess/includes/test_exp2.c
@@ -0,0 +1,3 @@
+---
+- "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+- src/main/c/Calculator/calculator.h
diff --git a/build/test/preprocess/includes/test_fmin.c b/build/test/preprocess/includes/test_fmin.c
new file mode 100644
index 0000000..f2efae7
--- /dev/null
+++ b/build/test/preprocess/includes/test_fmin.c
@@ -0,0 +1,3 @@
+---
+- "/var/lib/gems/3.0.0/gems/ceedling-0.31.1/vendor/unity/src/unity.h"
+- src/main/c/Calculator/calculator.h
diff --git a/build/test/results/test_add.pass b/build/test/results/test_add.pass
index f064217..78e4487 100644
--- a/build/test/results/test_add.pass
+++ b/build/test/results/test_add.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.0031575530010741204
+:time: 0.00310718099353835
diff --git a/build/test/results/test_cbrt.pass b/build/test/results/test_cbrt.pass
index 1d1333b..2ca262e 100644
--- a/build/test/results/test_cbrt.pass
+++ b/build/test/results/test_cbrt.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006589814991457388
+:time: 0.0032013720192480832
diff --git a/build/test/results/test_ceil.pass b/build/test/results/test_ceil.pass
index 424dca2..169404a 100644
--- a/build/test/results/test_ceil.pass
+++ b/build/test/results/test_ceil.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.00605196098331362
+:time: 0.0032484499970450997
diff --git a/build/test/results/test_divide.pass b/build/test/results/test_divide.pass
index e42d52d..b2acd89 100644
--- a/build/test/results/test_divide.pass
+++ b/build/test/results/test_divide.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006208898994373158
+:time: 0.0031690610048826784
diff --git a/build/test/results/test_exp.pass b/build/test/results/test_exp.pass
index 9da12f9..1ed6ad8 100644
--- a/build/test/results/test_exp.pass
+++ b/build/test/results/test_exp.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006314277008641511
+:time: 0.003156043996568769
diff --git a/build/test/results/test_exp2.pass b/build/test/results/test_exp2.pass
new file mode 100644
index 0000000..5e7a8a7
--- /dev/null
+++ b/build/test/results/test_exp2.pass
@@ -0,0 +1,18 @@
+---
+:source:
+  :path: test/Calculator
+  :file: test_exp2.c
+:successes:
+- :test: test_fmin
+  :line: 13
+  :message: ''
+  :unity_test_time: 0
+:failures: []
+:ignores: []
+:counts:
+  :total: 1
+  :passed: 1
+  :failed: 0
+  :ignored: 0
+:stdout: []
+:time: 0.006819645990617573
diff --git a/build/test/results/test_factorial.pass b/build/test/results/test_factorial.pass
index 0b746a8..0498fc9 100644
--- a/build/test/results/test_factorial.pass
+++ b/build/test/results/test_factorial.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006333274010103196
+:time: 0.006395308009814471
diff --git a/build/test/results/test_floor.pass b/build/test/results/test_floor.pass
index 73ac713..72fcb85 100644
--- a/build/test/results/test_floor.pass
+++ b/build/test/results/test_floor.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006300724984612316
+:time: 0.0063242810138035566
diff --git a/build/test/results/test_fmax.pass b/build/test/results/test_fmax.pass
index 1633b0c..189c8c6 100644
--- a/build/test/results/test_fmax.pass
+++ b/build/test/results/test_fmax.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006286512012593448
+:time: 0.006218630995135754
diff --git a/build/test/results/test_fmin.pass b/build/test/results/test_fmin.pass
new file mode 100644
index 0000000..78d377f
--- /dev/null
+++ b/build/test/results/test_fmin.pass
@@ -0,0 +1,18 @@
+---
+:source:
+  :path: test/Calculator
+  :file: test_fmin.c
+:successes:
+- :test: test_fmin
+  :line: 13
+  :message: ''
+  :unity_test_time: 0
+:failures: []
+:ignores: []
+:counts:
+  :total: 1
+  :passed: 1
+  :failed: 0
+  :ignored: 0
+:stdout: []
+:time: 0.006324283021967858
diff --git a/build/test/results/test_log.pass b/build/test/results/test_log.pass
index 7a917de..7b04c5c 100644
--- a/build/test/results/test_log.pass
+++ b/build/test/results/test_log.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.003080766007769853
+:time: 0.006288689997745678
diff --git a/build/test/results/test_log10.pass b/build/test/results/test_log10.pass
index 6a18a68..1fe0a8c 100644
--- a/build/test/results/test_log10.pass
+++ b/build/test/results/test_log10.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006343023007502779
+:time: 0.006322506000287831
diff --git a/build/test/results/test_mod.pass b/build/test/results/test_mod.pass
index 133966a..7ad2223 100644
--- a/build/test/results/test_mod.pass
+++ b/build/test/results/test_mod.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006334662000881508
+:time: 0.006345372006762773
diff --git a/build/test/results/test_multiply.pass b/build/test/results/test_multiply.pass
index abb7ff1..0826441 100644
--- a/build/test/results/test_multiply.pass
+++ b/build/test/results/test_multiply.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.004287940013455227
+:time: 0.004285867005819455
diff --git a/build/test/results/test_pow.pass b/build/test/results/test_pow.pass
index d7a62cd..428e5e1 100644
--- a/build/test/results/test_pow.pass
+++ b/build/test/results/test_pow.pass
@@ -19,4 +19,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006217798014404252
+:time: 0.006154242000775412
diff --git a/build/test/results/test_round.pass b/build/test/results/test_round.pass
index 8c39de6..dfc1609 100644
--- a/build/test/results/test_round.pass
+++ b/build/test/results/test_round.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006286452000495046
+:time: 0.006424476014217362
diff --git a/build/test/results/test_sin.pass b/build/test/results/test_sin.pass
index 61f7899..3e750e8 100644
--- a/build/test/results/test_sin.pass
+++ b/build/test/results/test_sin.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006029690994182602
+:time: 0.0063063729903660715
diff --git a/build/test/results/test_sqrt.pass b/build/test/results/test_sqrt.pass
index b1163b9..4045871 100644
--- a/build/test/results/test_sqrt.pass
+++ b/build/test/results/test_sqrt.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006369120994349942
+:time: 0.006311776989605278
diff --git a/build/test/results/test_subtract.pass b/build/test/results/test_subtract.pass
index cf2265a..5e1d3b4 100644
--- a/build/test/results/test_subtract.pass
+++ b/build/test/results/test_subtract.pass
@@ -15,4 +15,4 @@
   :failed: 0
   :ignored: 0
 :stdout: []
-:time: 0.006361763982567936
+:time: 0.006199363007908687
diff --git a/build/test/runners/test_exp2_runner.c b/build/test/runners/test_exp2_runner.c
new file mode 100644
index 0000000..50d9bd7
--- /dev/null
+++ b/build/test/runners/test_exp2_runner.c
@@ -0,0 +1,81 @@
+/* AUTOGENERATED FILE. DO NOT EDIT. */
+
+/*=======Automagically Detected Files To Include=====*/
+#include "unity.h"
+
+int GlobalExpectCount;
+int GlobalVerifyOrder;
+char* GlobalOrderError;
+
+/*=======External Functions This Runner Calls=====*/
+extern void setUp(void);
+extern void tearDown(void);
+extern void test_fmin(void);
+
+
+/*=======Mock Management=====*/
+static void CMock_Init(void)
+{
+  GlobalExpectCount = 0;
+  GlobalVerifyOrder = 0;
+  GlobalOrderError = NULL;
+}
+static void CMock_Verify(void)
+{
+}
+static void CMock_Destroy(void)
+{
+}
+
+/*=======Test Reset Options=====*/
+void resetTest(void);
+void resetTest(void)
+{
+  tearDown();
+  CMock_Verify();
+  CMock_Destroy();
+  CMock_Init();
+  setUp();
+}
+void verifyTest(void);
+void verifyTest(void)
+{
+  CMock_Verify();
+}
+
+/*=======Test Runner Used To Run Each Test=====*/
+static void run_test(UnityTestFunction func, const char* name, UNITY_LINE_TYPE line_num)
+{
+    Unity.CurrentTestName = name;
+    Unity.CurrentTestLineNumber = line_num;
+#ifdef UNITY_USE_COMMAND_LINE_ARGS
+    if (!UnityTestMatches())
+        return;
+#endif
+    Unity.NumberOfTests++;
+    UNITY_CLR_DETAILS();
+    UNITY_EXEC_TIME_START();
+    CMock_Init();
+    if (TEST_PROTECT())
+    {
+        setUp();
+        func();
+    }
+    if (TEST_PROTECT())
+    {
+        tearDown();
+        CMock_Verify();
+    }
+    CMock_Destroy();
+    UNITY_EXEC_TIME_STOP();
+    UnityConcludeTest();
+}
+
+/*=======MAIN=====*/
+int main(void)
+{
+  UnityBegin("test_exp2.c");
+  run_test(test_fmin, "test_fmin", 13);
+
+  return UnityEnd();
+}
diff --git a/build/test/runners/test_fmin_runner.c b/build/test/runners/test_fmin_runner.c
new file mode 100644
index 0000000..bed6d44
--- /dev/null
+++ b/build/test/runners/test_fmin_runner.c
@@ -0,0 +1,81 @@
+/* AUTOGENERATED FILE. DO NOT EDIT. */
+
+/*=======Automagically Detected Files To Include=====*/
+#include "unity.h"
+
+int GlobalExpectCount;
+int GlobalVerifyOrder;
+char* GlobalOrderError;
+
+/*=======External Functions This Runner Calls=====*/
+extern void setUp(void);
+extern void tearDown(void);
+extern void test_fmin(void);
+
+
+/*=======Mock Management=====*/
+static void CMock_Init(void)
+{
+  GlobalExpectCount = 0;
+  GlobalVerifyOrder = 0;
+  GlobalOrderError = NULL;
+}
+static void CMock_Verify(void)
+{
+}
+static void CMock_Destroy(void)
+{
+}
+
+/*=======Test Reset Options=====*/
+void resetTest(void);
+void resetTest(void)
+{
+  tearDown();
+  CMock_Verify();
+  CMock_Destroy();
+  CMock_Init();
+  setUp();
+}
+void verifyTest(void);
+void verifyTest(void)
+{
+  CMock_Verify();
+}
+
+/*=======Test Runner Used To Run Each Test=====*/
+static void run_test(UnityTestFunction func, const char* name, UNITY_LINE_TYPE line_num)
+{
+    Unity.CurrentTestName = name;
+    Unity.CurrentTestLineNumber = line_num;
+#ifdef UNITY_USE_COMMAND_LINE_ARGS
+    if (!UnityTestMatches())
+        return;
+#endif
+    Unity.NumberOfTests++;
+    UNITY_CLR_DETAILS();
+    UNITY_EXEC_TIME_START();
+    CMock_Init();
+    if (TEST_PROTECT())
+    {
+        setUp();
+        func();
+    }
+    if (TEST_PROTECT())
+    {
+        tearDown();
+        CMock_Verify();
+    }
+    CMock_Destroy();
+    UNITY_EXEC_TIME_STOP();
+    UnityConcludeTest();
+}
+
+/*=======MAIN=====*/
+int main(void)
+{
+  UnityBegin("test_fmin.c");
+  run_test(test_fmin, "test_fmin", 13);
+
+  return UnityEnd();
+}
diff --git a/src/main/c/Calculator/calculator.c b/src/main/c/Calculator/calculator.c
index a92d693..43a22a2 100644
--- a/src/main/c/Calculator/calculator.c
+++ b/src/main/c/Calculator/calculator.c
@@ -26,8 +26,8 @@ double floor(double num1);
 double round(double num1);
 double  fmax(double num1,double num2);
 double  log10(double num1);
-//double exp2(double num1);
-
+double exp2(double num1);
+double fmin(double num1, double num2);
     int calculator() {
     int choice;
     double num1, num2, result;
@@ -92,8 +92,8 @@ double  log10(double num1);
         printf("23. Round\n");
         printf("24. fmaximum");
         printf("25. base 10 logarithm");
-//     printf("26. 2 raise to the power");
-//      printf("27 trunc");
+        printf("26. 2 raise to the power");
+        printf("27. fminimum");
         printf("28. Exit\n");
     }
     double performOperation(int choice, double num1, double num2) {
@@ -149,10 +149,10 @@ double  log10(double num1);
             return 0; fmax(num1,num2);
         case 25:
             return 0; log10(num1);
-//      case 26:
-//         return 0; exp2(num1);
-//      case 27:
-//       return 0; trunc(num1);
+        case 26:
+         return 0; exp2(num1);
+        case 27:
+        return 0; fmin(num1,num2);
         default:
             return 0.0;
     }
@@ -253,13 +253,13 @@ double fmax(double num1 , double num2){
 double log10(double num1){
     double result = num1;
     return result;
-}/*
-double log10(double num1){
+}
+double exp2(double num1){
     double result = num1;
     return result;
 }
-double trunc(double num1){
-   double result =  num1;
-   return result;
+double fmin(double num1,double num2){
+   double minimum =  fmin(num1,num2);
+   return minimum;
 }
-*/
+
diff --git a/src/main/c/Calculator/calculator.h b/src/main/c/Calculator/calculator.h
index 35c9473..6592dda 100644
--- a/src/main/c/Calculator/calculator.h
+++ b/src/main/c/Calculator/calculator.h
@@ -18,4 +18,6 @@ double floor(double num1);
 double round(double num1);
 double fmax(double num1, double num2);
 double log10(double num1);
+double exp2(double num1);
+double fmin(double num1, double num2);
 #endif
diff --git a/test/Calculator/test_exp2.c b/test/Calculator/test_exp2.c
new file mode 100644
index 0000000..358a014
--- /dev/null
+++ b/test/Calculator/test_exp2.c
@@ -0,0 +1,27 @@
+                #ifdef TEST
+                #include "unity.h"
+                #include "calculator.h"
+
+
+                void setUp(void){
+                    //Wenn Funktion Vorraussetzungen braucht
+                }
+                void tearDown(void){
+                }
+
+
+                void test_fmin(void){
+                    /* arrange */
+                    double num1 =1;
+                    double num2 = 8;
+                    double result;
+                    double min = fmin(1,8);
+
+                    /* act */
+                     result = min;
+
+                    /* assert */
+                    TEST_ASSERT_EQUAL_INT(1,result);//fmin(1,8)=1
+                }
+
+                #endif // TEST
diff --git a/test/Calculator/test_fmin.c b/test/Calculator/test_fmin.c
new file mode 100644
index 0000000..9f56524
--- /dev/null
+++ b/test/Calculator/test_fmin.c
@@ -0,0 +1,26 @@
+                #ifdef TEST
+                #include "unity.h"
+                #include "calculator.h"
+
+
+                void setUp(void){
+                    //Wenn Funktion Vorraussetzungen braucht
+                }
+                void tearDown(void){
+                }
+
+
+                void test_fmin(void){
+                    /* arrange */
+                    double num1;
+                    double num2;
+                    double  result = fmin(1,16);
+
+                    /* act */
+                    return result;
+
+                    /* assert */
+                    TEST_ASSERT_EQUAL_INT(1, result);// fmin(1,16);
+                }
+
+                #endif // TEST