pow()
Description
Calculates the value of a number raised to a power. pow() can be used to raise a number to a fractional power. This is useful for generating exponential mapping of values or curves.
Syntax
pow(base, exponent)
Parameter Values
- base: the number. Allowed data types: float.
- exponent: the power to which the base is raised. Allowed data types: float.
Return Values
- The result of the exponentiation. Data type: double.
Example Code
Calculate the value of x raised to the power of y:
void setup() {
Serial.begin(9600);
int x = 2;
int y = 3;
double z = pow(x, y);
Serial.print(x);
Serial.print(" raised to the power of ");
Serial.print(y);
Serial.print(" is ");
Serial.println(z);
}
void loop() {}
The result in Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
2 raised to the power of 3 is 8.00
See the (fscale) sketch for a more complex example of the use of pow().
See Also
※ ARDUINO BUY RECOMMENDATION
| Arduino UNO R3 | |
| Arduino Starter Kit |
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