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https://github.com/DanilaFe/abacus
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Merge branch 'master' of github.com:DanilaFe/abacus
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commit
2074c11095
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@ -29,7 +29,7 @@ public class NaiveNumber implements NumberInterface {
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@Override
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public int precision() {
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return 4;
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return 10;
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}
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@Override
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15
src/org/nwapw/abacus/plugin/StandardPlugin.java
Normal file → Executable file
15
src/org/nwapw/abacus/plugin/StandardPlugin.java
Normal file → Executable file
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@ -80,6 +80,9 @@ public class StandardPlugin extends Plugin {
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@Override
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protected NumberInterface applyInternal(NumberInterface[] params) {
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if(params[0].signum() == 0){
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return (new NaiveNumber(1)).promoteTo(params[0].getClass());
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}
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NumberInterface factorial = params[0];
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NumberInterface multiplier = params[0];
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//It is necessary to later prevent calls of factorial on anything but non-negative integers.
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@ -89,6 +92,18 @@ public class StandardPlugin extends Plugin {
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return factorial;
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}
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});
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System.out.println(getExpSeriesTerm(4, new NaiveNumber(3)));
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}
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/**
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* Returns the nth term of the Taylor series (centered at 0) of e^x
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* @param n the term required (n >= 0).
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* @param x the real number at which the series is evaluated.
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* @return
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*/
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private NumberInterface getExpSeriesTerm(int n, NumberInterface x){
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return x.intPow(n).divide(this.getFunction("!").apply((new NaiveNumber(n)).promoteTo(x.getClass())));
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}
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}
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