cos()

Description

Calculates the cosine of an angle (in radians). The result will be between -1 and 1.

Syntax

cos(rad)

Parameter Values

  • rad: The angle in radians. Allowed data types: float.

Return Values

  • The cos of the angle. Data type: double.

Example Code

void setup() { Serial.begin(9600); for (int angle = 0; angle <= 180; angle += 15) { float angle_rad = angle * M_PI / 180; float cos_result = cos(angle_rad); Serial.print("cos("); Serial.print(angle); Serial.print("°) = "); Serial.println(cos_result); } } void loop() { }

The result in Serial Monitor:

COM6
Send
cos(0°) = 1.00 cos(15°) = 0.97 cos(30°) = 0.87 cos(45°) = 0.71 cos(60°) = 0.50 cos(75°) = 0.26 cos(90°) = -0.00 cos(105°) = -0.26 cos(120°) = -0.50 cos(135°) = -0.71 cos(150°) = -0.87 cos(165°) = -0.97 cos(180°) = -1.00
Autoscroll Show timestamp
Clear output
9600 baud  
Newline  

See Also

ARDUINO BUY RECOMMENDATION

Arduino UNO R3
Arduino Starter Kit
Please note: These are Amazon affiliate links. If you buy the components through these links, We will get a commission at no extra cost to you. We appreciate it.

※ OUR MESSAGES