mirea-projects/First term/Informatics/IT-5.md
2024-09-24 02:22:33 +03:00

213 lines
3.3 KiB
Markdown
Executable File
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Рабочая тетрадь № 5
## Задачи № 1
### № 1
```math
¬( ( x ∧ y ) ̅z ) ≡ ¬( z → x ) ¬( z → y )
¬( x ∧ y ) ∧ z ≡ ¬( ̅z x ) ¬( ̅z y )
( ̅x ̅y ) ∧ z ≡ ( z ∧ ̅x ) ( z ∧ ̅y )
( ̅x ̅y ) ∧ z ≡ z ∧ ( ̅x ̅y )
( ̅x ̅y ) ∧ z ≡ ( ̅x ̅y ) ∧ z
```
### № 2
```math
¬( ( x ∧ y ) ̅z) ≡ ¬( z → x ) ¬( z → y )
x y z f1 f2
0 0 0 0 0
0 0 1 1 1
0 1 1 1 1
0 1 0 0 0
1 0 0 0 0
1 0 1 1 1
1 1 0 0 0
1 1 1 0 0
```
### № 3
```math
F(x,y,z) = ( ̅z → x ) ↔ ( ̅x │ y )
x y z f
0 0 0 0
0 0 1 1
0 1 1 0
0 1 0 1
1 0 0 1
1 0 1 1
1 1 0 1
1 1 1 1
ДНФ: ( y ∧ ̅z ) ( ̅y ∧ z ) x
КНФ: ( x ̅y z ) ∧ ( x y z )
```
### № 4
```math
A = ( x → y ) ∧ ( x → ̅y ) ∧ x
A = ( ̅x y ) ∧ ( ̅x ̅y ) ∧ x
A = ( ̅x ( y ∧ ̅y ) ) ∧ x
A = ( ̅x 0 ) ∧ x
A = ̅x ∧ x
A = 0
```
## Задачи № 2
### № 1
```math
1) x ∧ y x ∧ y ̅x ∧ ̅y
( x ∧ y ) ( ̅x ∧ ̅y )
( x ∧ y ) ( ̅x ∧ ̅y )
x ↔ y
2) ( x ̅y ) ∧ ( ̅x y ) ∧ ( ̅x ̅y )
( x ̅y ) ∧ ̅x
( x ∧ ̅x ) ( ̅y ∧ ̅x )
0 ¬( y ∧ x )
y | x
```
### № 2
```math
( x1 x2 x3 ) ∧ ( ̅x1 ̅x2 x3 ) ∧ ( x1 x2 ̅x3 ) ∧ ( ̅x1 ̅x2 ̅x3 )
```
### № 3
```math
1) ( x ̅x )
2) ( ̅x ∧ ̅y ) ( x ∧ y ) ( ̅x ∧ y ) ( x ∧ ̅y )
```
### № 4
```math
1) ( x ∧ ̅x )
2) ( ̅x ̅y ) ∧ ( x y ) ∧ ( ̅x y ) ∧ ( x ̅y )
```
### № 5
```math
НФ: ( x ∧ y ∧ z ) ( ̅x ∧ y ∧ z ) ( ̅x ∧ ̅y ∧ z )
CКНФ: ( x y z ) ∧ ( x ̅y z ) ∧ ( ̅x y z ) ∧ ( ̅x y ̅z ) ∧ ( ̅x ̅y z )
```
## Тест № 5
1. 4
2. 1
3. 1
4. 2
5. 1
6. 3
7. 4
8. 2
9. 2
10. 4
## Задачи № 3
### № 1
```python
a = int(input())
if 100 <= a < 1000 and a % 5 == 0:
print("Является")
else:
print("Не является")
```
### № 2
```python
a = int(input())
b = int(input())
c = int(input())
if (a % 2) + (b % 2) + (c % 2) <= 1:
print("2 и более")
else:
print("Меньше 2")
```
### № 3
```python
x, y = float(input()), float(input())
if (x >= 0 and x**2 + y**2 <= 1) or (y <= 1 and x >= 0 and y >= x - 1):
print("Yes")
else:
print("No")
```
### № 4
```python
import math as m
x, y = float(input()), float(input())
if (y <= m.sin(x) and 0 <= y <= 0.5 and 0 <= x <= m.pi):
print("Yes")
else:
print("No")
```
### № 5
```python
x, y = float(input()), float(input())
if (x <= 0 and x**2 + y**2 <= 1) or (x**2 + y**2 <= 1 and y >= x):
print("Yes")
else:
print("No")
```
## Задачи № 4
### № 1
```python
# 3
x, y = float(input()), float(input())
if (x >= 0 and x**2 + y**2 <= 1) or (y <= 1 and x >= 0 and y >=// x - 1):
print("Yes")
else:
print("No")
# 4
import math as m
x, y = float(input()), float(input())
if (y <= m.sin(x) and 0 <= y <= 0.5 and 0 <= x <= m.pi):
print("Yes")
else:
print("No")
# 5
x, y = float(input()), float(input())
if (x <= 0 and x**2 + y**2 <= 1) or (x**2 + y**2 <= 1 and y >= x):
print("Yes")
else:
print("No")
```