jscience | 易学教程

Single Variable Polynomial (from text file)

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I want to modify the below code to read the nodes from a text file (vs. hard-coded values) Furthermore, read data from text file in the format: P1 = 3 5 1 -1 0 8 P2 = 5 6 2 -1 1 7 0 -4 etc... Name the values P(x) and input the remaining data. Any advice? import java.io.DataInputStream; import java.util.LinkedList; import java.util.ListIterator; // A term contains the coefficient and the exponent of x. class Term { public Term(int c, int d) { coeff = c; degree = d; } public Term multiply(Term other) { return new Term(coeff * other.coeff, degree + other.degree); } public void add(int c) { coeff

Converting different unit types in JScience library

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问题 I'm looking for a way in the JScience library to convert from one unit type to another. Given a factor between the base units of each types I should be able to convert. But it seems that JScience isn't being very nice about the conversion, and only allowing the conversion between units of the same base type. Basically, I'm writing a diet app, and I need to be able to convert between calories, joules, kilojoules, grams, pounds, kg, etc. It is complicated by the macronutrient values -

Single Variable Polynomial (from text file)

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问题 I want to modify the below code to read the nodes from a text file (vs. hard-coded values) Furthermore, read data from text file in the format: P1 = 3 5 1 -1 0 8 P2 = 5 6 2 -1 1 7 0 -4 etc... Name the values P(x) and input the remaining data. Any advice? import java.io.DataInputStream; import java.util.LinkedList; import java.util.ListIterator; // A term contains the coefficient and the exponent of x. class Term { public Term(int c, int d) { coeff = c; degree = d; } public Term multiply(Term

Which jsr-275 units implementation should be used? [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . JSR 275 seems to be in a rejected state. JScience seems to have an implementation and there seems to be unitsofmeasure. Are there any other open source implementations? Which package is jsr-275 compliant and easy to use. 回答1: Since the JSR-275 has been rejected the javax namespace cannot be used and has been

How to convert number to words in java

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问题 We currently have a crude mechanism to convert numbers to words (e.g. using a few static arrays) and based on the size of the number translating that into an english text. But we are running into issues for numbers which are huge. 10183 = Ten thousand one hundred eighty three 90 = Ninety 5888 = Five thousand eight hundred eighty eight Is there an easy to use function in any of the math libraries which I can use for this purpose? 回答1: Here is the code, I don't think there is any method in SE.