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Night Owl's Shareware - PDSI-006 - Night Owl Corp (1990).iso
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FUNCTION.DOC
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1991-03-19
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2KB
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99 lines
47
abs(x)
The absolute value of x
angle(x,y)
The angle from the x-axis to the cord through (x,y)
arccos(x)
The inverse of the cosine function
arcsin(x)
The inverse of the sine function
arctan(x)
The inverse of the tangent function
arcsec(x)
The inverse of the secant function
beta(x,a,b)
The beta distribution Γ(a+b)/(Γ(a)Γ(b))x^(a-1)(1-x)^(b-1)
cos(x)
The cosine function
cosh(x)
The hyperbolic cosine function, (exp(x)+exp(-x))/2
cot(x)
The cotangent function, cos(x)/sin(x)
coth(x)
The hyperbolic cotangent function, cosh(x)/sinh(x)
csc(x)
The cosecant function, 1/sin(x)
csch(x)
The hyperbolic cosecant function, 1/sinh(x)
exp(x)
The exponential function, e^x
fact(n)
n factorial, 1<n<34
fdist(x,a,b)
The f-dist, Γ((a+b)/2)/(Γ(a/2)Γ(b/2))(a/b)^(a/2)x^((a/2)-1)/(1+(ax/b))^((a+b)/2)
fn(x,k)
The kth function, available in module 1 only
gam(x,a,b)
The gamma dist., x^(a-1)exp(-x/b)/((b^a)Γ(a))
gamma(x)
The gamma function, integral from 0 to ∞ of exp(-b)b^(x-1) db
heav(x)
Heaveside unit dtep function, heav(x)=1 if x>0, heav(x)=0 if x<0
inf(x,y)
The smaller of the two numbers x and y
int(x)
The greatest integer less than or equal to x
intpower(x,n)
x^n for integer n. Faster than using ^
invcosh(x)
The inverse of the hyperbolic cosine, x>=1
invcoth(x)
The inverse of the hyperbolic cotangent
invcsch(x)
The inverse of the hyperbolic cosecant
invsinh(x)
The inverse of the hyperbolic sine
invsech(x)
The inverse of the hyperbolic secant, 0<x<=1
invtanh(x)
The inverse of the hyperbolic tangent, -1<x<1
jn(x,n)
Bessel's function of order n, n integer 1<n<10
log(x)
The common log function, base 10
loga(x,a)
The log base a
ln(x)
The natural log function, base e
normal(x,m,s)
The normal distribution with mean, m, and standard deviation, s
sqrt(x)
The square root function
round(x)
The integer nearest x
rp(x,p,q)
(x^p)^(1/q), works for x<0 unless p is odd and q is even
sec(x)
The secant function, 1/cos(x)
sech(x)
the hyperbolic secant function, 1/cosh(x)
sin(x)
The sine function
sinh(x)
The hyperbolic sine function, (exp(x)-exp(-x))/2
sup(x,y)
The larger of the two numbers, x and y
tdist(x,n)
Student t dist., Γ((n+1)/2)/(√(pi*n)Γ(n/2))1/((1+(x^2/n)^((n+1)/2))
tan(x)
The tangent function, sin(x)/cos(x)
tanh(x)
The hyperbolic tangent function, sinh(x)/cosh(x)
trunc(x)
Cut off at the decimal point =int(x) for x>=0, =int(x)+1 for x<0
weib(x,a,b)
Weibel dist., a*b*x^(b-1)exp(-a*x^b)