# Student's t-distribution (chart) Calculator

## Calculates a table of the probability density function, or lower or upper cumulative distribution function of the student's t-distribution, and draws the chart.

 select function probability density flower cumulative distribution Pupper cumulative distribution Q degree of freedom ν ν＞0 [ initial percentile x increment repetition ]
 $\normal Student's\ t-distribution\ t(x,\nu)\\[10](1)\qquad probability\ density\\\hspace{30}f(x,\nu)={\large\frac{(1+\frac{x^2}{\nu})^{-\frac{\nu+1}{2}}}{\sqrt{\nu}B(\frac{1}{2},\frac{\nu}{2})}}\\(2)\qquad lower\ cumulative\ distribution\\\hspace{30}P(x,\nu)={\large\int_{\small-\infty}^{\hspace{25}\small x}}f(t,\nu)dt\\(3)\qquad upper\ cumulative\ distribution\\\hspace{30}Q(x,\nu)={\large\int_{\small x}^{\hspace{25}\small\infty}}f(t,\nu)dt\\$

Student's t-distribution (chart)
 [1-1] /1 Disp-Num5103050100200
[1]  2010/06/14 04:46   Male / More than 60 / - / Very /
Purpose of use
Try to understand inverse T dist
Comment/Request
clarity in graphs, esp P and Q; never before came across LCD and UCD

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