Mulf Multiplies a Money with a float to return a money-stored type

I Interest (of 1 value returned) for n periods i - interest rate per period n - number of periods returned as a decimal representation of the interest

Pow is the power of Money

Setf sets a float64 into a Money type for precision calculations

Set sets the Money field M

Mean Average mean = SIGMA a / len(a) SIGMA a total of all of the elements of a len(a) = the number of values

Get gets the float64 value of money (see Value() for int64)

Ifl Interest (float64 arguments) r PLUS - interest rate per period - use (1 + r), E for ln etc. n - number of periods returned as a decimal representa

RND rounds int64 remainder rounded half towards plus infinity trunc = the remainder of the float64 calc r = the result of the int64 cal

worker funcs for GetQuote

Div Divides one Money type from another

String for money type representation in basic monetary unit (DOLLARS CENTS)

Value returns in int64 the value of Money (also see Gett(), See Get() for float64)

Abs Returns the absolute value of Money

Add Adds two Money types

Neg Returns the negative value of Money

PVf Present Value of a single future Value (using non integer period) pv = fv * ( 1 / ( 1 + r )^n) pv = present value fv = future value r = interest r

Sub subtracts one Money type from another

Black-Scholes (European put and call options) C Theoretical call premium (non-dividend paying stock) c = sn(d1) - ke^(-rt)N(d2) d1 = ln(s/k) + (r + s^

CMP Compounded Interest Rate i = (fv / pv) ^ (1/n) - 1 pv = present value fv = future value n - number of periods i = interest rate in percent per per

CNI Continuous Interest fv = pv * e ^ (i * n) pv - principal or present value i - interest rate per period n - number of periods returned as a decimal

Cov Covariance Cov(x,y) = SIGMA(XY) - (SIGMA(X) * SIGMA(Y)) SIGMA a total of all of the elements of a n is the number of x,y data points

DecimalChange resets the package-wide decimal place (default is 2 decimal places)

FV Future Value (compound interest) fv (m) = pv * ( 1 + i )^n pv = present value fv = future value (the maturity value) i = interest rate in percent p

FVA Future Value of an Annuity fv = pmt * ( ( 1 + n )^n - 1 ) / r fv = future value pmt (m) = payment per period r = interest rate in percent per peri

FVGA Future Value of a growing Annuity fv = pmt * ( (1+i)^n - (1+r)^n ) / (i - r) when i = r, fv = pmt * n * ((1+i)^(n-1)) pmt (m) = amount of each pa

FVi Future Value Simple Interest fv = pv * (1 + ( i * n ) ) fv - future value (maturity value) pv (m) - principal or present value i - interest rate p

GetQuote obtains a security quote of type Quote q = Quote t = the string ticker ex. "GOOG" "VTI" e = the string exchange ex. "NASDAQ" "NYSE"

Gett gets value of money truncating after DP (see Value() for no truncation)

Interest I = pv * i * n pv (m) - principal or present value i - interest rate per period n - number of periods returned into a money type as an int64-

Is Simple Interest (also see Compounded Interest Rate) i = fv - pv pv = present value in Money m = future value (maturity value) in Money i = interest

MP Mortgage Payment pmt = loan * r * (1 + r)^n / ((1 + r)^n - 1) loan - loan amount i - note percent interest rate (not monthly rate) n - number of pe

Mul Multiplies two Money types

Present Value of a Series of cash flows (using non integer time periods) general case pv = SIGMA (n, t=0) [fv-sub(t) / ((1 + i) ^ n-sub(t))] pv = pres

PVA Present Value of an Annuity (ordinary) pv = pmt * (1 - ( 1 / ((1+i)^n)) / i) m = amount of each payment and solution returned n = periods r = inte

Present Value of an Annuity Due pv = pmt * (1 - ( 1 / ((1+i)^n)) / i) * (i+1) pmt = amount of each payment n = periods r = interest rate in decimal pe

PVGA Present Value of a growing Annuity pv = pmt * (1 - ( (1+g) / ((1+r)^n)) / (r-g)) pv = present value (returned as m) m = payment per period r = in

PVGAD Present Value of a growing Annuity due (start of period) pv = pmt * (1 - ( (1+g) / ((1+r)^n)) / (r-g)) * (1+r) pv = present value pmt = payment

PVP Present Value (of an integer period) pv = fv * ( 1 / ( 1 + i )^n) pv = present value fv = future value r = interest rate in percent per period n =

PVi Present Value of a single future Value (using integer period) pv = fv * ( 1 / ( 1 + r )^n) pv = present value fv = future value r = interest rate

R Regression slope(b) = (n * SIGMAXY - (SIGMA X)(SIGMA Y))) / (n * SIGMAX^2) - (SIGMAX)^2) Intercept(a) = (SIGMA Y - b(SIGMA X)) / n r-squared = (Cov(

SD Standard Deviation sd = sqrt(SIGMA ((a[i] - mean) ^ 2) / len(a)) SIGMA a total of all of the elements of a a[i] is the ith elemant of a len(a) = th

SDs Standard Deviation of a sample sd = sqrt(SIGMA ((a[i] - mean) ^ 2) / (len(a)-1)) SIGMA a total of all of the elements of a a[i] is the ith elemant

Sign returns the Sign of Money 1 if positive, -1 if negative