% (Modulo)

• ％（Modulo）
• Description

The remainder of in integer divided by another number is called modulus, which serves to keep a variable in a specified scope (such as the size of the array).

• Syntax

Result=Dividend％divisor

Parameters Dividend：A number which is to be divided

Divisor：A number used to divide the other number Return

Remainder（modulus）

• Example

X = 7%5; // X is 2
X = 9% 5；// X is 4
X = 5% 5；// X is 0
X = 4％5； // X is 4

/*Calculate the modulus of 1 to 10 through the circulation. */

int values[10];
int i = 0;
 
void setup () {
}
 
void loop()
{
  values [i] = analogRead（0）;
  i =（i + 1）％10; //modulo operation 
}

• Note

The modulo operator doesn’t work to floating-point numbers.

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