📅  最后修改于: 2023-12-03 15:33:00.589000             🧑  作者: Mango
In programming, multiplication is an essential arithmetic operation that is often used in many applications. In C, multiplication is performed using the *
operator. In this guide, we will explore multiplication in C programming language and provide various examples.
The multiplication operator in C is represented by the *
symbol. It can be used with two operands to produce the product of two numbers. For example,
int a = 3;
int b = 4;
int c = a * b; // c = 12
In the above code, we declare two integer variables a
and b
and assign them the values 3
and 4
, respectively. We then use the *
operator to multiply a
and b
and store the result in the integer variable c
.
In C, we can multiply a variable by a constant value. For example,
int a = 2;
int b = a * 5; // b = 10
In the above code, we declare an integer variable a
and assign it the value 2
. We then multiply a
by the constant value 5
and store the result in the integer variable b
.
In C, we can also multiply floating-point numbers using the *
operator. For example,
float a = 1.5;
float b = 2.5;
float c = a * b; // c = 3.75
In the above code, we declare two floating-point variables a
and b
and assign them the values 1.5
and 2.5
, respectively. We then use the *
operator to multiply a
and b
and store the result in the floating-point variable c
.
C also provides a shorthand way to perform multiplication with assignment. For example,
int a = 4;
a *= 3; // a = 12
In the above code, we declare an integer variable a
and assign it the value 4
. We then use the *=
operator to multiply a
by the constant value 3
and store the result back in a
.
In this guide, we explored multiplication in C programming language. We learned about the *
operator, multiplying by constants, multiplying floating-point numbers, and multiplying with assignment. These concepts are essential to creating and developing C programs that involve arithmetics.