# T.INV

### Definition of T.INV:

This formula calculates the negative inverse of the one-tailed TDIST function.

### Sample Usage

`T.INV(0.35, 1)`

`T.INV(A1, A2)`

### Syntax for T.INV:

- T.INV(probability, degrees_freedom)
`probability`

- The probability associated with the t-distribution.Must be greater than

`0`

and less than`1`

.

`degrees_freedom`

- The number of degrees of freedom.

Truncated to an integer in the calculation if a non-integer is provided as an argument.

Must be greater than or equal to

`1`

.

- Both arguments to
`T.INV`

must be numeric or a destination cell whose value is numeric.

### See Also

TDIST: Calculates the probability for Student's t-distribution with a given input (x).

`T.INV.2T`

: Calculates the inverse of the two-tailed TDIST function.

TINV: Calculates the inverse of the two-tailed TDIST function.

**Step 1. **To use the T.INV Formula, **start with the Excellentable you would like to edit.**

**Step 2. Then type the T.INV** **formula into the cell you have chosen to display the outcome:**

**Step 3. Fill in the 2 values- In this example I have chosen 2 values that are the same. **

**Step 4. Once saved, your completed formula will display in a confluence page like this. **