| Name | Brief | Example |
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| Chi2inv | Computes the inverse of the /math-9ca61f458c78bb5591d04aaaa14da0e7.png "\chi^2") cdf for the corresponding probabilities in /math-02129bb861061d1a052c592e2dc6b383.png "X") with parameters specified by /math-4fdefba26320686bb2bd0579a0df421c.png "\nu") .
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| Ftable | The F distribution function with m and n degrees of freedom. | Example |
| Finv | Computes the inverse of /math-800618943025315f869e4e1f09471012.png "F") cdf at /math-f6ad5d21eaa32e5b71fa58df6050314c.png "x") , with parameters /math-ebfdd136331841a1b59f835c998ca593.png "\nu_1") and /math-1ff7af9a810bd160a7334c3de425ed9d.png "\nu_2") .
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| Foldnorminv | computes the deviate x, associated with the given lower tail probability, p, of the folded normal distribution, with distribution parameters mu and sigma. | |
| Gaminv | Computes the inverse of Gamma cdf at /math-376e32af2f5a6dc0d67450d303b4ade6.png "g_p") , with parameters /math-0cc175b9c0f1b6a831c399e269772661.png "a") and /math-92eb5ffee6ae2fec3ad71c777531578f.png "b") .
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| Landauinv | Computes the deviate x of the Landau distribution at probability p, with location parameters mu and scale parameter sigma. | Example |
| IncF | ||
| IncF | The incomplete F-table function. | |
| InvF | The inverse F distribution function with m and n degrees of freedom. | Example |
| InvErf | Computes inverse error function fnction at x. | |
| Invprob | The Inverse Probability Density function. | Example |
| Invt | The inverse t distribution function with n degrees of freedom. | Example |
| Logninv | Computes the deviate,/math-f5e81d79b535c85746763245f006f7b5.png "x_p") , associated with the given lower tail probability,/math-83878c91171338902e0fe0fb97a8c47a.png "p") , of the Lognormal distribution using the parameters /math-c9faf6ead2cd2c2187bd943488de1d0a.png "\mu") and /math-a2ab7d71a0f07f388ff823293c147d21.png "\sigma") .
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| Norminv | Computes the deviate,, associated with the given lower tail probability,, of the standardized normal distribution.
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| Srangeinv | Computes the deviate, , associated with the lower tail probability of the distribution of the Studentized range statistic.
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| Ttable | The Student's t distribution with n degrees of freedom. | Example |
| Tinv | Computes the deviate associated with the lower tail probability of Student's t-distribution with real degrees of freedom. | |
| Wblinv | Computes the inverse Weibull cumulative distribution function for the given probability using the parameters a and b. | |
| Betainv | Returns the inverse of the cumulative distribution function for a specified beta distribution. | Example |