Example:
nDeriv(f(x),x,h) returns (f(x+h)-(f(x-h)))*0.5/h
NEG
Unary minus. Enters the negative sign.
negbinomial
The negative binomial probability density function. Computes the probability density of the negative binomial
distribution at x, given parameters n and k.
negbinomial(n, k, x)
Example:
negbinomial(4, 2, 0.6) returns 0.20736
negbinomial_cdf
The cumulative probability density function for the negative binomial distribution. Returns the lower-tail
probability of the negative binomial probability density function for the value x, given parameters n and k.
With the optional parameter x
2
, returns the area under the negative binomial probability density function
between x and x
2
.
negbinomial_cdf(n, k, x, [x
2
])
Examples:
negbinomial_cdf(4, 0.5, 2) returns 0.34375
negbinomial_cdf(4, 0.5, 2, 3) returns 0.15625
negbinomial_icdf
The inverse cumulative probability density function for the negative binomial distribution. Returns the value x
such that the negative binomial lower-tail probability of x, given parameters n and k, is p.
negbinomial_icdf(n, k, p)
Example:
negbinomial_icdf(4, 0.5, 0.7) returns 5
newton
Uses Newton method to estimate the root of a function, beginning with Guess and calculating Integer
iterations. By default, Integer is 20.
newton(Expr,Var, [Guess],[Integer])
Example:
newton(3-x^2,x,2) returns 1.73205080757
normal
Returns the expanded irreducible form of an expression.
Ctlg menu 445
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