What is / used for in C language?

The division operator "/" is used to calculate the quotient of two expressions and returns a floating point number, even if the operand is an integer. Has lower precedence than the multiplication operator and produces an error or infinity when either the dividend or the divisor is 0, or NaN when both are 0.

Use of / in C language

In C language, the division operator / is used to calculate two The quotient of the expression.

Usage:

##result = expression1 / expression2;

Where:

• result is the result variable
• expression1 is the dividend
• expression2 is the divisor

Return type:

Division operator/ returns a floating point number. Even if the operands are all integers, the result will be truncated to a floating point number.

Priority:

The division operator / has a lower priority than the multiplication operator *, so when the expression is evaluated, the multiplication operation will be executed first.

Special cases:

• The dividend is 0: When the dividend is 0, the division operation will generate an error.
• The divisor is 0: When the divisor is 0, the division operation will produce an infinite value. However, if both the dividend and the divisor are 0, the result is NaN (not a number).

Example:

int num1 = 10;
int num2 = 5;
float result = num1 / num2;

printf("result = %.2f\n", result); // 打印 result 的浮点数表示

Output:

<code>result = 2.00</code>

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