Curta Calculator Computing examples (instruction manual in english)

Description

…
Computing Examples for the curta
This is high quality
reprint
(near original look)
of the original 51 page booklet "Computing Examples for the Curta",
originally published by Contina Ltd, Vaduz, Liechtenstein
.
These Computing Examples complete the little booklet "instructions for use of the curta" resp. the short instructions sheet "Your curta calculator", which have accompanied every curta machine.
Every example in this collection relates to both curta models, whith the exception of those, which are marked "only Curta model II". The two models differ only in the number of figures , which they can handle.
The booklet measures approximately 145 by 105 millimetres (6"x 4") in size
The original booklet is out of print since many years.
It’s very hard to find and purchase.
Every Curta owner needs this reprinted manual
This booklet contains the following computing examples:
Division by breaking down (subtractive method)
Division by multiplying by a reciprocal
The rule of three
The rule of three in a single calculation (only CURTA Model II)
.
Extended rule of three
Calculation of roots
Continued mulfiplcation aXbXcXd...etc.
Cubes without intermediate notes
Commerce and Industry
Checking of invoices and goods
Percentage calculations
A)
Percentage increase
B)
Percentage decrease
C)
Profit margin
D)
Compound percentages
E)
Profit and loss
F)
Capital and interest
Costing
Cosling wilh simultaneous control (only CURTA Type II)
Calculafions with nines transfer
Exchange calculalions
Calculations with English currency
Statistics
Simuilaneous accumulation of a sum and a sum of squares (only Curta type II)
Compuiation of arithmetic mean and standard deviatio
n
Technical and Survey calculalions
Division into a negative number (complementary number)
Calculation of co-ordinates
Determination of the amount of silver in an alloy (only CURTA Model II)
Determination of the angles in an acute-angled triengie, given three sides
(only CURTA Model II)
Determinaton of a side of an obtuse-angled triangle (given the two other sides and their included angle
Calculation of area from co-ordinates
Calculation of the distance between two poinis, given their co-ordinates (using Pythagoras' theorem)
Calculation of distance and azimuih (only CURTA Model II)
Linear interpolation
Shipping in pandemic times
Shipping to the continental U.S.
This item will be shipped to destinations in the continental U.S. (i.e. not to Puerto Rico, Guam, Hawaii, and the U.S. Virgin Islands) using USPS Smartmail Expedited. Delivery time is estimated to be 10-15 days and includes detailed shipment tracking. This shipping method is slightly more expensive but not affected by the disruption of international mail traffic due to the pandemic between Europe and the U.S.
Worldwide shipping to all other destinations
by registered mail