Full text: Appeltauer, Ignatius: Elementorum matheseos purae pars prima continens algebram

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222 
Ergo logarithmi vulgares numerorum decadico 
rum ex eadem serie notarum constantium, ean 
dem quidem mantissam habent, sed characteri 
stica differuut. Jam si loca notarum in syste 
mate decadico indicibus designentur, et quidem 
notarum integrarum loca indicibus positivis, nota 
rum decimalium loca indicibus negativis, hoc modo 
0 —1 
—2 —3 
etc. 
etc. 
2 
3 
— 
2 
. 
— 
. 
characteristica logarithmi vulgaris cujusvis nu 
meri congruet cum indice sinistimae notae ejus 
dem numeri, uti ex consideratione exemplorum 
praecedentium apparebit. 
Nonnulli ad evitandas characteristicas nega 
tivas logarithmis hujus generis 10 unitates ad 
dunt; videlicet logarithmi C,5590683—4 loco, 
ponunt logarithmum 6,5590683, quam additio 
nem in fine calculi proprio modo compensare 
debent. Sed consultius erit, praesertim tironi 
bus, characteristicis negativis uti. 
376. §. Si quaeratur logarithmus fractionis 
vulgaris, casus duplex es e poterit ; mimirum 
numerator vel erit major vel minor denomi 
natore. 
In primo casu logarithmus numeratoris eti¬
	        
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