This information is referenced in the Equations article.

Many regular math functions (such as "ceil" or "max") can be used in Knack numeric equations. Others, like "getDateDayOfMonth" provide numeric values for a date.

Name | Description | Example with Result |

cbrt | Calculate the cube root of a number | cbrt(3) = 27 |

ceil | Round a value up to the nearest integer | ceil(4.2) = 5 |

cos | Calculate the cosine of a number | cos(2) = -0.4161468365471424 |

factorial | Compute the factorial of a number | factorial(5) = 120 |

gcd | Calculate the greatest common denominator of a comma-separated list of numbers | gcd(5, 25) = 5 |

log | Calculate the logarithm of a number. First number is value for which to calculate, second is the base | log(10,4) = 1.6609640474436813 |

log10 | Calculate a base 10 logarithm. Same as log(x, 10) | log10(4) = 0.6020599913279623 |

max | Get the maximum of a comma-separated list of values | max(1,6,9) = 9 |

mean | Compute the mean of a list of values | mean(1,6,8) = 5 |

median | Compute the median of a list of values | median(8,9,1) = 8 |

min | Get the minimum of a list of values | min(43,100,3) = 3 |

pow | Calculate the base to the exponent power | pow(7,2) = 49 |

random | Get a random number between two values | random(1,42) = 36.238172 |

randomInt | Get a random integer between two values | randomInt(1,42) = 36 |

sign | Calculate the sign of a number: -1 if number is less than 0, 1 if number is greater than 0, 0 if number is 0 | sign(2) = 1 |

sin | Calculate the sine of a number | sin(15) = 0.6502878401571168 |

std | Compute the standard deviation of a list of values | std(1,5,42,78) = 36.07861785970558 |

sqrt | Calculate the square root of a number | sqrt(81) = 9 |

sum | Compute the sum of a list of values | sum(1,42,56) = 99 |

tan | Calculate the tangent of a number | tan(16) = 0.3006322420239034 |

var | Compute the variance of a list of values | var(1,42,34,67) = 742 |

**Note the the following examples use April 15, 2017 as the date.**

getDateDayOfWeek | Get the numeric day of the week from a Date | getDateDayOfWeek({Date}) = 6 |

getDateDayOfMonth | Get the numeric day of the month from a Date | getDateDayOfMonth({Date}) = 15 |

getDateWeek | Get the numeric week of the year from a Date | getDateWeek({Date}) = 16 |

getDateMonth | Get the numeric month from a Date | getDateMonth({Date}) = 4 |

getDateQuarter | Get the numeric quarter from a Date | getDateQuarter({Date}) = 2 |

getDateYear | Get the numeric year from a Date | getDateYear({Date}) = 2017 |