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| {{Formulas question type}}
| | #REDIRECT [[Formulas_question_type]] |
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| ==Numerical functions==
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| The numerical functions available in the Formulas question type are listed in the table below:
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| {| class="nicetable"
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| |-
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| ! Function
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| ! Definition
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| |-
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| | colspan="2" | ''No argument''
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| |-
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| |-
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| | pi()
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| | Value of π (=3.14159...)
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| |-
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| | colspan="2" | ''One argument''
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| |-
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| | abs(x)
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| | Absolute value
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| |-
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| | acos(x)
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| | Arccosine (in radians)<br>acos(x) returns a numeric value between 0 and π radians for x between -1 and 1, otherwise NAN<br>Examples:<br>acos(-2) = NAN<br>acos(-1) = 3.1415926535898<br>acos(0) = 1.5707963267949<br>acos(0.5) = 1.0471975511966<br>acos(1) = 0<br>acos(2) = NAN
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| |-
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| | acosh(x)
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| | Inverse hyperbolic cosine
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| |-
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| | asin(x)
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| | Arcsine (in radians)
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| |-
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| | asinh(x)
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| | Inverse hyperbolic sine
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| |-
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| | atan(x)
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| | Arctangent (in radians)
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| |-
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| | atanh(x)
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| | Inverse hyperbolic tangent
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| |-
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| | ceil(x)
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| | Ceiling function<br>ceil(x) = ⌈x⌉ is the smallest integer greater or equal to x
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| |-
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| | cos(x)
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| | Cosine of a value given in radians
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| |-
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| | cosh()
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| | Hyperbolic cosine
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| |-
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| | deg2rad()
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| | Converts a degree value to a radian value
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| |-
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| | exp(x)
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| | Exponential function<br>exp(x) = e<sup>x</sup> where (= 2.71828...) is the base of the natural logarithm
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| |-
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| | expm1(x)
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| |-
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| | fact(x)
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| | Factorial of x. Gives the numerical value up to fact(170) and INF thereafter. See [[Formulas:_More_examples#Factorial|these examples ↗]].
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| |-
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| | floor(x)
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| | Floor function<br>floor(x) = ⌊x⌋ is the largest integer less than or equal to x
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| |-
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| | is_finite(x)
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| |-
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| | is_infinite(x)
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| |-
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| | is_nan(x)
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| |-
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| | log(x)
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| |-
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| | log10x()
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| |-
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| | log1px()
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| |-
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| | rad2deg(x)
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| | Converts a radian value to a degree value
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| |-
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| | round(x)
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| | Rounds a value to the nearest integer
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| |-
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| | sin(x)
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| | Sine of a value given in radians
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| |-
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| | sinh(x)
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| | Hyperbolic sine
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| |-
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| | sqrt(x)
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| | Square root
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| |-
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| | tan(x)
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| | Tangent of a value given in radians
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| |-
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| | tanh(x)
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| | Hyperbolic tangent
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| |-
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| | colspan="2" | ''Two arguments''
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| |-
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| | atan2(y,x)
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| |-
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| | fmod(x,y)
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| |-
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| | log(x,base)
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| |-
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| | pow(x,y)
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| | The base x taken to the exponent y<br>pow(x,y) = x<sup>y</sup>
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| |-
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| | round(x,precision)
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| |-
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| | colspan="2" | ''Several arguments''
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| |-
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| | min(x1,x2,...)
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| | Returns the lowest value
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| |-
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| | max(x1,x2,...)
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| | Returns the highest value
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| |}
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| Note that the functions used in the variable assignments is (almost) a superset of the functions used in the algebraic formulas.
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| [[#top|Back to top of page]]
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| [[Formulas_question_type|← FORMULAS QUESTION TYPE]] | |
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| ===In other languages===
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| [https://docs.moodle.org/all/es/F%C3%B3rmulas:_Funciones_num%C3%A9ricas Español]<br>
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| [https://docs.moodle.org/3x/fr/Formules:_Fonctions_numériques Français]
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