A New Introduction to the Mathematicks: Being Essays on Vulgar and Decimal Arithmetick. Containing, Not Only the Practical Rules, But Also the Reasons and Demonstrations of Them; with So Much of the Theory, and of Universal Arithmetick Or Algebra, as are Necessary for the Better Understanding the Practice and Demonstrations. With a General Preface, Including a Panegyric, on the Usefulness of Mathematical Learning |
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Page 8
... Debts a Merchant owes , are , with refpect to him , Negative Quantities ; for they are , with respect to him , really fo much less than nothing ; denying him to be worth by fo much as the Debts are , what his Goods , Cash , and Debts ...
... Debts a Merchant owes , are , with refpect to him , Negative Quantities ; for they are , with respect to him , really fo much less than nothing ; denying him to be worth by fo much as the Debts are , what his Goods , Cash , and Debts ...
Page 169
... Debt , which cannot be demanded till fome Time to come , or what must be deducted or abated out I 8 out of the Debt , at a given Of REBATE , or DISCOUNT . 169.
... Debt , which cannot be demanded till fome Time to come , or what must be deducted or abated out I 8 out of the Debt , at a given Of REBATE , or DISCOUNT . 169.
Page 170
... Debt , at a given Rate of Interest per Cent . per Annum . [ 344. The ready Money that will fatisfy the Debt , is called the prefent Worth ; because , if it was put our to Intereft at the given Rate , for the Time the Dif count is ...
... Debt , at a given Rate of Interest per Cent . per Annum . [ 344. The ready Money that will fatisfy the Debt , is called the prefent Worth ; because , if it was put our to Intereft at the given Rate , for the Time the Dif count is ...
Page 171
... Debt to the Difcounture- nonreach rach Question 1. What Discount ought there to be allowed on paying , in ready Money , a Debt of 210 % . Tos . due at the End of two Years , Rebate being made " at - 1 . per Cent . per Annum fimple ...
... Debt to the Difcounture- nonreach rach Question 1. What Discount ought there to be allowed on paying , in ready Money , a Debt of 210 % . Tos . due at the End of two Years , Rebate being made " at - 1 . per Cent . per Annum fimple ...
Page 172
... Debt . Whence it is evident the following Rule will find the prefent Worth , viz . Find the Amount of 100l . for the given Time ; then fay , as that Sum : 100 % : the given Debt to the prefent Worth . Or , in other Words , as 1 Year ...
... Debt . Whence it is evident the following Rule will find the prefent Worth , viz . Find the Amount of 100l . for the given Time ; then fay , as that Sum : 100 % : the given Debt to the prefent Worth . Or , in other Words , as 1 Year ...
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A New Introduction to the Mathematicks: Being Essays on Vulgar and Decimal ... Benjamin Donn No preview available - 2016 |
Common terms and phrases
3grs alfo alſo Amfterdam Anſwer applicate Numbers Arithmetic becauſe betwixt Bufhel Cafe caft Cent CHAP confequently contained Crown Cube Root Days Decimal Demonftration Denominator divided Dividend Divifion Divifor eafily equal Example expreffed faid fame Farthings fecond fhall fhew fhewn fhould fimple fince firft Figure firſt Flemish folved fome Fraction ftand fubtract fuch fufficient fuppofe Gain or Lofs Gallons given Number greater greateſt Square Hence increaſe Integer Intereft laft laſt leaft Number leffer lefs Meaſure merator Method metic Moidore Money muft Multiplicand multiply muſt Number fought Number of Places Number of Points obferve Pence Perfon Pounds Power Price Product Progreffion Quantity Queſtion Quotient Ratio Reaſon Refolvend refpectively remaining right Hand Rule of Three Scholium ſhall Shillings Solution ſtand Sterling Subfidy Suppofition taken Terms thefe theſe Things thofe uſeful Vulgar Fraction whence whofe Root whole Numbers Yards
Popular passages
Page xi - ... might be able to transfer it .to other parts of knowledge, as they shall have occasion. For, in all sorts of reasoning, every single argument should be managed as a mathematical demonstration : the connexion and dependence of ideas should be followed, till the mind is brought to the source on which it bottoms, and observes the coherence all along, though in proofs of probability one such train is not enough to settle the judgment, as in demonstrative knowledge.
Page 300 - OPERATIONS WITH FRACTIONS A) To change a mixed number to an improper fraction, simply multiply the whole number by the denominator of the fraction and add the numerator.
Page xi - ... we may truly say nature gives us but the seeds of it; we are born to be, if we please, rational creatures, but it is use and exercise only that makes us so, and we are indeed so no farther than industry and application has carried us.
Page 272 - When first the marriage knot was tied Betwixt my wife and me, My age did hers as far exceed As three times three does three ; , But when ten years and half ten years We man and wife had been, Her age came up as near to mine As eight is to sixteen. Now tell me, I pray, What were our ages on the wedding-day...
Page xi - I said above, that the faculties of our souls are improved and made useful to us, just after the same manner as our bodies are. Would you have a man write or paint, dance or fence well, or perform any other manual operation dexterously and with ease? let him have ever so much vigour and activity, suppleness and address naturally, yet nobody expects this from him, unless he has been used to it, and has employed time and pains in fashioning and forming his hand, or outward parts, to these motions.
Page 270 - If the errors are alike, divide the difference of the products by the difference of the errors, and the quotient will be the answer. If the errors are unlike, divide the sum of the products by the sum of the errors, and the quotient will be the answer.
Page 75 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Page xi - ... this from him, unlefs he has been ufed to it, and has employed time and pains in fafhioning and forming his hand, or outward parts, to thefe motions. Juft fo it is in the mind ; would you have a man reafon well, you muft ufe him to it betimes, exercife his mind in obferving the connexion of ideas, and following them in train.
Page xviii - Phaenomena as these did come under the known Laws of Motion, it might very well be taken for granted, that the more obvious Appearances in the same Fabrick are owing to such Causes as are within the Reach of Geometrical Reasoning.
Page xxiii - ... nor was there ever any thing that has contributed to enlarge my apprehensions of the immense power of God, the magnificence of his creation, and his own transcendent grandeur, so much as the little portion of astronomy which I have been able to attain. And I would not only recommend it to young students, for the same purposes,, but I would persuade all mankind, if it were possible, to gain some degree of acquaintance with the vastness, the distances, and the motions of the planetary worlds, on...