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# Form Calculation - Math Function Reference

**Last Update: April 15, 2017**

Calculation Wizard **"More Math functions**" allows you to perform mathematical tasks. The following advanced mathematical functions are available on the Form Calculation Widget and in the Conditions->Update/Calculate a Field option. You can use this as your reference to build perfect calculation forms.

**In Form Calculation widget:**

**In Conditions->Update/Calculate a Field:**

**Supported Math Functions are**:

abs, acos, asin, atan, atan2, ceil, cos, exp, floor, log, max, min, pow, random, round, sin, sqrt, tan, E, LN2, LN10, LOG2E, LOG10E, PI, SQRT1_2, SQRT2

**Other Math Functions included: **

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 take it from the user input by adding your form fields.

**1. abs**

This returns the absolute value of a number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-numbers-only-form

**2. acos**

Calculates the arccosine of the inputted number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-arccosine-acos-form

**3. asin**

Calculates the arcsine of a number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-arcsine-asin-form

**4. atan**

Calculates the arctangent of the entered number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-arctangent-atan-form

**5. atan2**

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

Example Formula:

Example Form:

http://www.jotform.com/form-templates/calculate-arctangent2-atan2-form

**6. ceil**

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

Example Formula:

Example Form:

http://www.jotform.com/form-templates/round-decimals-upward

**7. cos**

This returns the cosine of a specified number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-cosine-cos-form

**8. exp**

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

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-euler-s-number-exp

**9. floor**

This is opposite to ceil function. This rounds number downward to its nearest integer.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/round-decimals-downward-form

**10. log**

Returns natural logarithm.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-logarithm-log-form

**11. max**

Output the number with the highest value.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/find-the-highest-value

**12. min**

Output the number with the lowest value.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/find-the-lowest-value

**13. pow**

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

Example Formula:

Example Form:

http://www.jotform.com/form-templates/exponent-power-calculation-form

**14. random**

Return a random number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/generate-random-number-2

**15. round**

Round number to the nearest integer.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/round-off-number

**16. sin**

Return the sine of a number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-sine-sin

**17. sqrt**

Output the square root of a number

Example Formula:

Example Form:

http://www.jotform.com/form-templates/square-root-calculator-form

**18. tan**

Calculate the tangent.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-tangent-tan

**19. E**

Return the Euler's number.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/euler-s-e-number-calculator-form

**20. LN2**

Outputs the natural logarithm of 2, approximately 0.693

Example Formula:

Example Form:

http://www.jotform.com/form-templates/logarithm2-ln2-sample-form

**21. LN10**

Outputs the natural logarithm of 10, approximately 2.302

Example Formula:

Example Form:

http://www.jotform.com/form-templates/logarithm10-ln10-sample-form

**22. LOG2E**

Base-2 logarithm of E, approximately 1.442

Example Formula:

Example Form:

http://www.jotform.com/form-templates/base-2-logarithm-of-e-log2e-calculation-form

**23. LOG10E**

Base-10 logarithm of E, approximately 0.434.

Example Formula:

Example Form:

http://www.jotform.com/form-templates/base-10-logarithm-of-e-log10e-calculation-form

**24. PI**

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

Example Formula:

Example Form:

http://www.jotform.com/form-templates/pi-p-calculation-form

**25. SQRT1_2**

Return the square root of 1/2 which is approximately 0.707

Example: (√0.5), which results to 0.707

Example Formula:

Example Form:

http://www.jotform.com/form-templates/get-the-square-root-of-1-2-with-sqrt1-2

**26. SQRT2**

Return the square root of 2, approximately 1.414.

Example: (√2), which results to 1.414

Example Formula:

Example Form:

http://www.jotform.com/form-templates/multiply-the-number-with-square-root-of-2-sqrt2

**Other Math Functions:**

**1. avg()**

Returns the average value of the list of numeric values.

**Function usage:** 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://form.jotformpro.com/70991655420964.

**2. avgNoZero()**

Calculate average value while excluding empty fields.

**Function usage:** avgNoZero(value 1, value 2, value 3)

Here's an example calculation:

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

**3. count()**

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

**Function usage:** count(multiple choice field)

Here's an example calculation:

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

**4. commaSeparate()**

Include comma separators in large numbers.

**Function usage:** commaSeparate(number value)

Here's an example case:

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

**5. 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://form.jotformpro.com/70991655420964. Find the math function with header date() on it.

**6. dateString()**

Converts the DateTime value to a date string.

**Function usage:** dateString(date field value)

Here's an example case:

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

**7. nth()**

The function will get the nth biggest field.

**Function usage:** 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://form.jotformpro.com/70991655420964. Look for the nth() function heading.

More math function references:

How to turn negative values to zero?

http://www.w3schools.com/jsref/jsref_obj_math.asp

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math

## 22 Comments... |

jmagana |
(March 19, 2014 at 07:47 AM) | ||

Is there a way that on the final output or answer to the math calculation that I can have it show the dollar sign and decimal point? |

lawrencecfp |
(March 19, 2014 at 11:55 PM) | ||

If you have multiple check boxes, how do you assign a unique value to each item in the check box. For example, say you have red, blue, and yellow as check box options. How then do you assign a unique value to each color, so that when a person clicks on the color, its associated value is added to the calculation. In Excel, this would be done with an IF,THEN function. |

cheekyface |
(March 27, 2014 at 09:13 AM) | ||

Can you show how to use this to generate a unique number for every submission? I want to have a quote form that gives users a reference they can use for self-quoting. |

betocaceres |
(June 10, 2014 at 03:51 PM) | ||

hermoso, gracias |

Adrian14 |
(July 21, 2014 at 03:08 PM) | ||

How to add interest to calculate? |

mlps |
(July 22, 2014 at 08:09 AM) | ||

Is there the possibility of a math function which returns the current date and time? |

Tara Anderson |
(September 03, 2014 at 05:24 AM) | ||

Can you do if statements? |

ozgurerdogan2 |
(March 26, 2015 at 11:16 AM) | ||

What must I choose for: |

billwiese |
(May 18, 2015 at 07:54 AM) | ||

Can I calculate the days between two dates? |

accountax |
(May 29, 2015 at 09:02 AM) | ||

Problem: |

Wolverin89 |
(August 19, 2015 at 03:44 PM) | ||

cool! thanks! |

acpacentertix |
(August 29, 2015 at 06:56 PM) | ||

I need to round up to the nearest $0.25; but the Ceiling function only allows me to round up to the nearest whole number. How can I do this? |

Hfplus |
(September 30, 2015 at 10:06 AM) | ||

We need to find the total number of hours and minutes between start time and end time. What would the calculation look like for this? |

coachlee |
(October 13, 2015 at 04:29 PM) | ||

Id like to add up the values inserted in 3x fields and display it in a forth for each row of a matrix grid. |

iftach |
(December 08, 2015 at 03:20 AM) | ||

Is there option to make something like 0.137 round to 0.1 and 0.987 round to 0.9? |

info@pdfn.co |
(March 11, 2016 at 06:50 AM) | ||

Is it possible to output a fiksed value to a field, if calculation for it results in lower value? For example if a+b < 10, then output 10, if not output result for a+b |

Rhuan Carneiro |
(March 16, 2016 at 04:00 PM) | ||

how can add percentage in a certain amount that will be filled? |

sbufsaweb |
(June 08, 2016 at 11:40 AM) | ||

Is it possible to give an error if the calculation total is less than 6 or greater than 20? |

BVHall |
(June 29, 2016 at 12:10 PM) | ||

I'm using the Configurable List widget to allow a user to add different booking dates for a room. |

ImaginarteLaminas |
(August 29, 2016 at 09:18 PM) | ||

Se pueden sumar las cantidades ingresadas en un formulario "lista configurable" gracias |

realtomsamsher |
(December 01, 2016 at 12:08 AM) | ||

how can i do (fieldA+fieldB) times the number of fields added? |

Brother2Brother |
(July 04, 2017 at 02:41 PM) | ||

Hi, I am having difficulty with the form calculation for a satisfaction survey where V. Satisfied=4, Satisfied=3, Neutral=0, Dissatisfied=2 and V. Dissatisfied=1. Also, what would be the best way to display this data (i.e., pie, chart, etc) I'd like to see the number of responses for each question. |

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