# TDIST

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the probability for the t-distribution.

## Syntax

TDIST(*x*,*deg*,*tails*)

## Arguments

This function has these arguments:

| **Argument** | **Description** |
| -------- | ----------- |
| *x* | Probability of the two-tailed student’s t-distribution |
| *deg* | Number of degrees of freedom to characterize the distribution; if not an integer, the number is truncated |
| *tails* | Number of tails to return; if not an integer, the number is truncated; for 1, returns one‑tailed distribution; for 2, returns two‑tailed distribution |

## Data Types

Accepts numeric data for all arguments. Returns numeric data.

## Examples

`TDIST(A1,B45,2)`
`TDIST(0.245,2,1)` gives the result 0.414651

## Version Available

This function is available in product version 1.0 or later.

## See Also

[FDIST](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsDtoG/FunctionFDIST) \| [TINV](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsTtoZ/FunctionTINV) \| [TTEST](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsTtoZ/FunctionTTEST) \| [Statistical Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsstats)