Trigonometry

Digital I/O
Analog I/O
Advanced I/O
Time
Math
Trigonometry
Random Numbers
Bits and Bytes
Interrupts
Serial Comm.

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Camera
Servo Motor
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Character LCD
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I²C (Wire)
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Periodic Operation
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Overview
Storage
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Audio
Microphone
BLE

This library provides trigonometry functions for carrying out sin, cos and tan calculations.

sin

Description

Calculates the sine (sin) of an angle (in radians).

Syntax

sin(rad)

Parameters

rad: The angle in radians (float)

Returns

The sine of the angle (double)

cos

Description

Calculates the cosine (cos) of an angle (in radians).

Syntax

cos(rad)

Parameters

rad: The angle in radians (float)

Returns

The cosine of the angle (double)

tan

Description

Calculates the tangent (tan) of an angle (in radians).

Syntax

tan(rad)

Parameters

rad: The angle in radians (float)

Returns

The tangent of the angle (double)

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#include <Arduino.h>
void setup(){
    Serial.begin(9600);
}
    
void loop(){
        // print labels
    Serial.print("RAD");       // prints a label
    Serial.print("\t");        // prints a tab
    
    Serial.print("SIN");
    Serial.print("\t");
    
    Serial.print("COS");
    Serial.print("\t");
    
    Serial.print("TAN");
    Serial.print("\t");
    Serial.println("");
        
    for(float x=0; x< PI; x+=0.01){    // only part of the ASCII chart, change to suit
    
    // print it out in many formats:
        Serial.print(x);       // print as an ASCII-encoded decimal - same as "DEC"
        Serial.print("\t");    // prints a tab
    
        Serial.print(sin(x));  // print as an ASCII-encoded decimal
        Serial.print("\t");    // prints a tab
    
        Serial.print(cos(x));  // print as an ASCII-encoded hexadecimal
        Serial.print("\t");    // prints a tab
    
        Serial.print(tan(x));  // print as an ASCII-encoded octal
        Serial.print("\t");    // prints a tab
    
        Serial.println("");      // prints another carriage return
        delay(100);            // delay 100 milliseconds
    }
    
}