1000000030

N T

INTERCOLUMNIATION, in archilea ure, denoles

thc (p.lce belween tIVO columns,

IVhi~h

is always lO be

proponioned

the height and bulk of Ihe columns .

See

,lReH ITEeTuR E.

INTERCOST,\L . in anatomy, an appellalion given to

fuch mu(cles, n, rves, meries and veins as lie between

tho ribs.

See

ANATOM Y, Part Ir.

INTERDICT, an eecl,fiallieal cen(ure, by IVhieh Ihe

church of Rome forbids Ihe performance of divine

feTl'ice in a kingdollJ, provinee, tOlVn,

oc.

INTERDICTJON, in SCOIS laIV, a legal rellraint laid

upon weak or p,u(u(e per(ons from figning any deed

to their olVn prejlldice, IVithoul the con(ent o( cura–

tors

01'

imerdiélors. See Seo

LAW, ti!. 7.

l NTEREST, is the premium or money paid for the

loanor ufe of money ; and is dillinguiOled into twO

kinds, fimpleand compuund.

Simple interell is lhdt IVhieh is paid for Ihe princi–

pal, or fum lent, at a cenain rale or

allo~'anee

made

by laIV, or agreement of parties, whereby fo much as

51. or 61.

any other fum, is pald for 1001. lent

out for one year; a·.d more or lefs proponionally for

greater or le!Ter (ums, and (or more or le(s ¡ime. For

example, if it is 51. to 1001 for one ¡,ear, it is 21.

lOS. lor half a year, and 101. for tIVO years: al(o

for one year of 200I and 51. for half ayear;

and fo on, (or other fu:ns and times . Thus, as the

law. or agreement o( parties, fixe, acenain ratio, or,

as IVe call it, rate o( interefl, which is (omuchon the

IOC

I for one year; fromthis we can eafily find the

proportional interefl on 11. for one year, belng plain–

ly the

pan of the iAterefl of 1001 (o if this is 51.

that is .05 1 if Ihis is 61. that is .061 and if this is

51. tO s. or 5 51. that is .055 1.

Wherefore, if lVe

underfmnd the rate of ;merefl to be the interefl of 11.

for one year, tbe morecommon quellions about fimple

interell will relate

tlte(e four things,

viz.

any prin–

cipal (um, its inlerefl, the time i" which it gives that

interell , and the tate, 01' intetell of 11. for on; year;

according to which, that principal, interefl, and time, are

adjulled t9one another.

From which we have four problems; in the rules

whmof lVe (uppofethe principal and interefl exprelk'd

in thedenomination of pOllnds, by reducing IVhat isle(s

than 11. tO a dte;mal of 11. and the time

be ex–

prdied inyears, and decimal pans o( one year.

Probo

Having...ny principal, (um, and time, wilh

the tates of interell given, to find the interefl of tbat

fum (or that time and rate.

Rule: Muhiply the principal tate, and time, con–

tinually into one another; the produél is the intererl

fougl:t.

Ob(crve, ir IVe exprefs the principal by p, tite in–

teren by

1/,

the time by 1, and the tate by r, then

this rule is thus repre« nted.

1I=I/,r.

Example: The rate o( intereO being .051. what is

the intm ll of 85 1. for

yealS and J 'Iuamrs, or

4 75 ¡,cars?

"n(wer. 201. JS. 9d=20.18751. = 85X4-75X.

VOL.

No. 62.

N T

Which is thus p'erformed:

8s=p

4·75=1

J·75

.05=r

20.1875 pounds.

Which decimal is reduced

multiplyiog it by

20,

12,

and

thus,

3.75°0 Ihillings

1)'000

75°0

9.0000 pence

Probo

Having tbe rate, principal aad interell,

~nd

the time.

Rule: Divide lhe interen by the produél of the rate

and principal, the quote is thetime: thus, 1=';"

Example: The rate '051. principal 851. interen

201. J

9d. or 20.18751. the time is 4·75 years,

20.1875

20.1875,

years. Thus, 4. 75=----, or ---

85X .ol

4.25

Demonnration: This rule is deduced from tite for–

mer; thus, fince

1I=lrp,

then dividing both fides by

rp,

ir is

7r=t.

Probo

in.

Haying the principal, interen, and time,

to find therate.

Rule: Divide theinterell by the prodaél of princi-

pal and time, thequote is the rate : /hus,

';¡=r.

Example:

11=20.18751.

1=4.75 years,

p=851,

l '

I 20. 18 75

20. 1875.

len

r=.05

·=.wsxSS'

40315

Demonflration: Since

1I=lrp,

divide both by

IPi

i"=r.

Probo IV. Having the rate, time and interefl, to

find the principal.

Rule: Divide the interen by tlte

produ,~

o( tate and

time, the quote is rhe principal; thus,

+-=p.

Example: "=20.1875 1.

1=4·

75 ycars,

r=.05

. .

20 1875

20.t875

lhen

p=85 1.=-

or -- - '

475 X05

.2,)5

•

Demonflration: Since

1I=lrp,

divide both fides by

lhe

qu~.lte

,;1 .-:1'.

SehollUOI :

the imerell o( any

("01

for any time

is acldcd to the principal, this tot,1nr (umis e.¡Jled

the ,mount,

(viz .

of the principal aud its intereil (ur

that time.) And then frolO thefo lour things,

viz.

the '0I0unt, wbieh lI'e call

the principal, tbe time,

anti