Create main.py

main.py

@@ -0,0 +1,30 @@
+import streamlit as st
+
+def add_num():
+    return [int(num) for num in iter(input, "x")]
+
+
+def calculate_mean(numbers: list):
+    mean_numbers = sum(numbers) / len(numbers) if numbers else 0
+    return mean_numbers
+
+
+def variance(mean_num: float, numbers: list):
+    vari = sum((num - mean_num) ** 2 for num in numbers) / len(numbers) if numbers else 0
+    return vari
+
+
+def standard_deviation(vari:float):
+    return vari ** .5
+
+menu = st.selectbox("انتخاب", ["هیچی","واریانس""میانگین","انحراف از معیار","ورود اعداد"])
+if menu == "انحراف از معیار":
+    add_num()
+nums = add_num()
+mean = calculate_mean(nums)
+variance_value = variance(mean, nums)
+std = standard_deviation(variance_value)
+print("واریانس:", variance_value)
+print("انحراف از معیار:", std)
+
+