Form Calculation – Math Function Reference

The Calculation Wizard’s Math Functions allow you to perform mathematical tasks. The following advanced mathematical functions are available on the Form Calculation Widget and when using the Update/Calculate Field condition. You can use this as your reference to build perfect calculation forms.

In the Form Calculation Widget:

In the Update/Calculate Field Condition:

Math Functions:

• abs()
• acos()
• asin()
• atan()
• atan2()
• ceil()
• cos()
• exp()
• floor()
• log()
• max()
• min()
• pow()
• random()
• round()
• sin()
• sqrt()
• tan()

Math Properties:

• E
• LN2
• LN10
• LOG2E
• LOG10E
• PI
• SQRT1_2
• SQRT2

Other Functions:

• avg()
• avgNoZero()
• count()
• commaSeparate()
• date()
• dateString()
• nth()

Tip: The numbers on the formula below can be replaced with the fields from your form as seen on the actual form when you test it. In other words, the numbers can either be defined on the formula or taken from the user input by adding your form fields.

Math Functions

abs()

This returns the absolute value of a number.

• Example: abs(-100)
• Result: 100
• Demo: https://www.jotform.com/form-templates/get-numbers-only-form

acos()

Calculates the arccosine of a number.

• Example: acos(0.5)
• Result: 1.05
• Demo: https://www.jotform.com/form-templates/get-arccosine-acos-form

asin()

Calculates the arcsine of a number.

• Example: asin(0.5)
• Result: 0.52
• Demo: https://www.jotform.com/form-templates/get-arcsine-asin-form

atan()

Calculates the arctangent of a number.

• Example: atan(1)
• Result: 0.7854
• Demo: https://www.jotform.com/form-templates/get-arctangent-atan-form

atan2()

This function calculates the arctangent of the quotient of its arguments.

• Example: atan2(4,8)
• Result: 0.4636
• Demo: https://www.jotform.com/form-templates/calculate-arctangent2-atan2-form

ceil()

Round up a number to its nearest integer. If the value is a full number, it will not be rounded.

• Example: ceil(1.5)
• Result: 2
• Demo: https://www.jotform.com/form-templates/round-decimals-upward

cos()

This returns the cosine of a number.

• Example: cos(2)
• Result: -0.42
• Demo: https://www.jotform.com/form-templates/get-cosine-cos-form

exp()

This function returns the value of Ex, where E is Euler’s number (approximately 2.7183) and x is the specified number.

• Example: exp(1)
• Result: 2.7183
• Demo: https://www.jotform.com/form-templates/get-euler-s-number-exp

floor()

This is the opposite of the ceil() function. This rounds down a number to its nearest integer.

• Example: floor(1.5)
• Result: 1
• Demo: https://www.jotform.com/form-templates/round-decimals-downward-form

log()

Returns natural logarithm.

• Example: log(2)
• Result: 0.69
• Demo: https://www.jotform.com/form-templates/get-logarithm-log-form

max()

Output the number with the highest value.

• Example: max(4,8,2)
• Result: 8
• Demo: https://www.jotform.com/form-templates/find-the-highest-value

min()

Output the number with the lowest value.

• Example: min(1,2,5)
• Result: 1
• Demo: https://www.jotform.com/form-templates/find-the-lowest-value

pow()

Power returns the value of x to the power of y. Example pow(2,3) means 2*2*2, which returns 8.

• Example: pow(2,3)
• Result: 8
• Demo: https://www.jotform.com/form-templates/exponent-power-calculation-form

random

Returns a random number.

• Example: random*100000
• Resut: A random number between 0 and 100000
• Demo: https://www.jotform.com/form-templates/generate-random-number-2

round()

Round a number to the nearest integer.

• Example: round(2.5)
• Result: 3
• Demo: https://www.jotform.com/form-templates/round-off-number

sin()

Return the sine of a number.

• Example: sin(3)
• Result: 0.14
• Demo: https://www.jotform.com/form-templates/get-sine-sin

sqrt()

Output the square root of a number.

• Example: sqrt(25)
• Result: 5
• Demo: https://www.jotform.com/form-templates/square-root-calculator-form

tan()

Calculate the tangent.

• Example: tan(45)
• Result: 1.62
• Demo: https://www.jotform.com/form-templates/get-tangent-tan

Math Properties

E

Return the Euler’s number.

• Example: E * 2
• Result: 5.4366
• Demo: https://www.jotform.com/form-templates/euler-s-e-number-calculator-form

LN2

Outputs the natural logarithm of 2, approximately 0.6931.

• Example: LN2 * 1
• Result: 0.6931
• Demo: https://www.jotform.com/form-templates/logarithm2-ln2-sample-form

LN10

Outputs the natural logarithm of 10, approximately 2.3026.

• Example: LN10 * 1
• Result: 2.3026
• Demo: https://www.jotform.com/form-templates/logarithm10-ln10-sample-form

LOG2E

Base-2 logarithm of E, approximately 1.4427.

• Example: LOG2E * 1
• Result: 1.4427
• Demo: https://www.jotform.com/form-templates/base-2-logarithm-of-e-log2e-calculation-form

LOG10E

Base-10 logarithm of E, approximately 0.4343.

• Example: LOG10E * 1
• Result: 0.4343
• Demo: https://www.jotform.com/form-templates/base-10-logarithm-of-e-log10e-calculation-form

PI

Return PI. This represents the ratio of the circumference of a circle to its diameter, approximately 3.14159.

• Example: PI * 1
• Result: 3.1416
• Demo: https://www.jotform.com/form-templates/pi-p-calculation-form

SQRT1_2

Return the square root of 1/2 which is approximately 0.7071.

• Example: SQRT1_2 * 1
• Result: 0.7071
• Demo: https://www.jotform.com/form-templates/get-the-square-root-of-1-2-with-sqrt1-2

SQRT2

Return the square root of 2, approximately 1.4142.

Example: (√2), which results to 1.414

• Example: SQRT2 * 1
• Result: 1.4142
• Demo: https://www.jotform.com/form-templates/multiply-the-number-with-square-root-of-2-sqrt2

Other Functions

avg()

Returns the average value of the list of numeric values.

Example: avg(value 1, value 2, value 3)

Here’s an example calculation on my cloned form:

You can find the example avg() function here: https://www.jotform.com/70991655420964.

avgNoZero()

Calculate the average value while excluding empty fields.

Example: avgNoZero(value 1, value 2, value 3)

Here’s an example calculation:

You can test this function on my cloned form here: https://www.jotform.com/70991655420964. Look for the avgNoZero() heading.

count()

Returns the number of rows that matches the specified criteria. This is usually used if you want to count the number of selections in a check box field.

Example: count(multiple choice field)

Here’s an example calculation:

You can test this on my cloned form here: https://www.jotform.com/70991655420964. Look for the count() function heading.

commaSeparate()

Include comma separators in large numbers.

Example: commaSeparate(number value)

Here’s an example case:

You can test this on my cloned form here: https://www.jotform.com/70991655420964. Look for the commaSeparate() function heading.

date()

Returns the sequential serial number that represents a particular date. You’ll need to use the default date picker field if you will be using date-based functions.

Function usage: date(date field value)

Here’s an example case:

You can see this in action on my form here: https://www.jotform.com/70991655420964. Find the math function with header date() on it.

dateString()

Converts the DateTime value to a date string.

Example: dateString(date field value)

Here’s an example case:

You can see this in action on my cloned form here: https://www.jotform.com/70991655420964. Find the dateString() function heading.

nth()

The function will get the nth biggest field.

Example nth(nth biggest, value 1, value 2, value 3)

On my settings and example, the first parameter is the nth biggest rule. In my case, I set it to “1”, which means I’ll get the 1st biggest value in the list of inputs I will set. You can see below I have 3 input boxes, the nth() function will get the 1st biggest value. If you want to get the 2nd highest or biggest value, then set the nth rule to 2.

You can test this on my cloned form here: https://www.jotform.com/70991655420964. Look for the nth() function heading.