From 04fd6c2065dd26ecfa8da4b8ea45406529eeb092 Mon Sep 17 00:00:00 2001
From: rhinemann <andreyfrog26@gmail.com>
Date: Mon, 16 Sep 2024 14:46:12 +0300
Subject: [PATCH] Math task finished.

---
 .gitignore |  1 +
 Makefile   | 12 ++++++++++++
 ll.c       |  6 ++++++
 maths.c    | 24 ++++++++++++++++++++++++
 strings.c  |  6 ++++++
 5 files changed, 49 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 ll.c
 create mode 100644 maths.c
 create mode 100644 strings.c

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1de5659
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+target
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..095bb70
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,12 @@
+CC=gcc
+CFLAGS=-Wall -O3
+TDIR=target/
+
+objects = strings ll
+all: $(objects) maths
+
+maths: maths.c
+	$(CC) $(CFLAGS) -o $(TDIR)$@ $< -lm
+
+$(objects): %: %.c
+	$(CC) $(CFLAGS) -o $(TDIR)$@ $<
\ No newline at end of file
diff --git a/ll.c b/ll.c
new file mode 100644
index 0000000..b453418
--- /dev/null
+++ b/ll.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main() {
+   printf("Hello, World!\n");
+   return 0;
+}
diff --git a/maths.c b/maths.c
new file mode 100644
index 0000000..c51a74f
--- /dev/null
+++ b/maths.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <math.h>
+
+// z_1 = cos(3pi / 8 - alpha / 4)^2 - cos(11pi / 8 + alpha / 4)^2
+// z_2 = sqrt(2) / 2 * sin(alpha / 2)
+
+int main() {
+    double alpha = 0, z_1 = 0, z_2 = 0;
+
+    printf("Input Ɑ: ");
+
+    if (scanf("%lf", &alpha) != 1){
+        printf("\e[1;31m[ERROR] Alpha must be a double, restart the program.\n\e[0m");
+        return 0;
+    }
+
+    z_1 = cos(3 * M_PI / 8 - alpha / 4) * cos(3 * M_PI / 8 - alpha / 4) - cos(11 * M_PI / 8 + alpha / 4) * cos(11 * M_PI / 8 + alpha / 4);
+    z_2 = sqrt(2) / 2 * sin(alpha / 2);
+
+    printf("z_1 = %lf\n", z_1);
+    printf("z_2 = %lf\n", z_2);
+
+    return 0;
+}
diff --git a/strings.c b/strings.c
new file mode 100644
index 0000000..b453418
--- /dev/null
+++ b/strings.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main() {
+   printf("Hello, World!\n");
+   return 0;
+}