Question

Правила записи арифметических выражений. Урок 1 Определи результат выполнения арифметической функции модуля math. import math X=-9 Z=-16 Y=math.fmod(abs(X+Z),4) 4.0 -1.0 1.0 -4.0 Назад Проверить Помогите пожалуйста

Answer 1

Ответ:

#python

import math

X = -9

Z = -16

Y = math.fmod(abs(X + Z),4)

print(Y)

Объяснение:

Result:

1.0

Answer 2

Rules for Writing Arithmetic Expressions

When writing arithmetic expressions, it is important to follow certain rules to ensure accurate calculations. Here are some key rules to keep in mind:

1. Operator Precedence: Operators in arithmetic expressions have a specific order of precedence. The order is as follows: parentheses, exponentiation, multiplication and division (from left to right), and addition and subtraction (from left to right). This means that operations within parentheses are performed first, followed by exponentiation, then multiplication and division, and finally addition and subtraction.

2. Associativity: Some operators, such as addition, subtraction, multiplication, and division, are associative. This means that when there are multiple operators of the same precedence, they are evaluated from left to right. For example, in the expression `2 + 3 - 4`, the addition is performed first, followed by subtraction.

3. Parentheses: Parentheses are used to group operations and override the default precedence and associativity rules. Operations within parentheses are always performed first. For example, in the expression `(2 + 3) * 4`, the addition is performed first, followed by multiplication.

4. Unary Operators: Unary operators, such as the negation operator `-`, are used to change the sign of a number. For example, `-5` represents the negative value of 5.

5. Whitespace: Whitespace (spaces, tabs, line breaks) is generally ignored in arithmetic expressions. However, it is recommended to use whitespace to improve readability and avoid confusion.

Now let's analyze the given arithmetic expression and determine the result of the math module function.

Analysis of the Arithmetic Expression

The given arithmetic expression is as follows:

import math
X = -9
Z = -16
Y = math.fmod(abs(X + Z), 4)

Let's break it down step by step:

1. The `import math` statement imports the math module, which provides various mathematical functions and constants.

2. The variables `X` and `Z` are assigned the values -9 and -16, respectively.

3. The expression `X + Z` calculates the sum of `X` and `Z`, resulting in -25.

4. The `abs()` function is then applied to the sum `-25`, which returns the absolute value of -25, which is 25.

5. Finally, the `math.fmod()` function is used to calculate the remainder of dividing the absolute sum (`25`) by `4`. The result is assigned to the variable `Y`.

Result of the Arithmetic Expression

Based on the analysis above, the value of `Y` is 1.0.

Please let me know if you have any further questions!