FRIDEN Automatic square root (PDF MULTIPAGINA)

Friden calculator
Model SRW
Automatic square roo

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Titolo: FRIDEN Automatic square root

Dimensione file: 2,7 MB (2 pagine PDF MULTIPAGINA)

Tipo del contenuto: brochure o inserto staccato

Data della fonte: 1955

Linguaggio: en (English)

Marca del contenuto: Friden logo friden 

Caricato da: Maverich il 13-12-2015
Testo originale: Friden calculator
Model SRW
Automatic square root
Provides fully automatic extraction of square root, plus all the other time-saving advantages which enable the Friden to do more kinds of figure work without operator decisions than any calculator ever developed. Other features include:
Exclusive touch-one key automatic multiplication with proof dials
Exclusive fully automatic division with automatic decimal point
Automatic tabulation
Automatic grand totals
Exclusive keyboard lock
Split dial clearance and dial locks for accumulation
Exclusive twirlers for direct dial entry
Automatic dial clearance and carriage positioning
Overall simplicity for unequalled operating speed


Now… for the first time on any desk calculator
Fully automatic square root
One of the most spectacular developments in the history of desk calculating machines is the Friden fully automatic SQUARE ROOT CALCULATOR.

1) Set the number from which the root is to be taken on the keyboard (in this case, 390,625).
2) Touch the square root key corresponding to the position of the decimal point in the radicand.
3) The correst square root appears in the dials.

All the basic features of Model STW have been retained in the Square Root Calculator. Thus the user has fully automatic extraction of square root, plus all the time-and labor-saving advantages of fully automatic Model STW.
With Model SRW, a mathematical operation which up to this time has been tedious and time-consuming, even with the use of tables and the most automatic of modem calculators, has been reduced to the simplest of all procedures. The operator merely sets the number on the keyboard and touches the small key corresponding to the decimal point in the number. The square root appears in the dials almost instantaneously.
If desired, the square root is retained in the machine for further calculation, eliminating the need for copying the root to the keyboard.
In the simplification of square root extraction, Friden has substituted, to the furthest possible degree, automatic mechanical precision for human motions and decisions. The operation is reduced to the mere selection of the number whose square root is desired.


Testo tradotto: Calcolatrice Friden
Modello SRW
Radici quadrate automatiche

friden friden srw calcolatrice