Math Calculations Inside Your Chatbot

ChitChatbot allows you to perform not just basic calculations like addition, subtraction, multiplication, and division, but also advanced mathematical and scientific calculations. Let’s walk through how to do this and what operators, functions, and constants you can use.

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How to Perform Calculations

1. Choose the Flow
   Select the flow where you want to include the calculation.
2. Add an Action
   In the block builder, select Action → Set Custom Field.
3. Set Up the Custom Field
   • Choose the existing custom field (where you want to store the result).
   • In the operation settings, choose Use custom formula.
   • In the Value field, enter your desired formula.
4. Save
   Click Save to apply the changes.

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Example: Calculating (A + B) * (A – B)

Suppose you want to calculate (A+B)×(A−B)(A + B) \times (A – B)(A+B)×(A−B), with A and B as custom fields filled from user input.

• Step 1: Ensure A and B are already stored in custom fields (e.g., {{value a}} and {{value b}}).
• Step 2: Create a new custom field (e.g., calculation_value) to store the result.
• Step 3: In the Set Custom Field action, use this formula in the Value field: ({{value a}} + {{value b}}) * ({{value a}} - {{value b}})
• Example Calculation:
  If A = 4 and B = 2:
  (4+2)×(4−2)=6×2=12(4 + 2) \times (4 – 2) = 6 \times 2 = 12(4+2)×(4−2)=6×2=12.
  The bot will show 12 as the result.

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Examples of Basic and Complex Math Expressions

• 1 + 2 * 3 - 4
• pi * 2
• abs(1) + min(1, 2) * max(1, 2, 3)
• min(1 + 2, abs(-1))
• 1 + ((2 - 3) * (5 - 7))
• 2 * (-3)

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Allowed Formats and Syntax

• 1 → a simple number.
• (1 + ((2))) → nested brackets are allowed.
• 00001 → leading zeros are fine.
• .1 → zero before the decimal point can be omitted.

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Operators

Operator	Description
+	Addition
-	Subtraction
*	Multiplication
/	Division

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Functions

Function	Description
abs	Absolute value
aCos	Arc cosine
aCosH	Hyperbolic arc cosine
aSin	Arc sine
aSinH	Hyperbolic arc sine
aTan	Arc tangent
aTanH	Hyperbolic arc tangent
aTanTwo	Arc tangent of two variables
ceil	Rounds up to the nearest integer
cos	Cosine
cosH	Hyperbolic cosine
degToRad	Degrees to radians
exp	Exponential
expMOne	Exponential minus one
floor	Rounds down to the nearest integer
fMod	Floating-point remainder of division
hypot	Hypotenuse
log	Natural logarithm
logOneP	Natural log of (1 + x)
logTen	Logarithm base 10
max	Maximum value
min	Minimum value
pow	Power function (x^y)
radToDeg	Radians to degrees
round	Rounds to the nearest integer
sin	Sine
sinH	Hyperbolic sine
sqrt	Square root
tan	Tangent
tanH	Hyperbolic tangent

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Constants

Constant	Description
e	Euler’s number (2.71828…)
euler	Same as e
lnPi	Natural log of Pi
lnTen	Natural log of 10
lnTwo	Natural log of 2
logTenE	Log base 10 of e
logTwoE	Log base 2 of e
onePi	1 divided by Pi
pi	Pi constant (3.14159…)
piFour	Pi divided by 4
piTwo	Pi divided by 2
sqrtOneTwo	Square root of 1/2
sqrtPi	Square root of Pi
sqrtThree	Square root of 3
sqrtTwo	Square root of 2
twoPi	2 times Pi
twoSqrtPi	2 times square root of Pi

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Other Syntax

Symbol	Description
(, )	Brackets (used to group expressions)
,	Comma (used to separate arguments in functions)
.	Dot (used for decimals and floating-point numbers)

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Tips for Best Results

✅ Always store numerical inputs in custom fields as numbers (not text).
✅ Test your formula on small examples to ensure accuracy.
✅ For advanced calculations, break them into smaller formulas for better readability and maintainability.