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package ¼ÆËãÆ÷;
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public class c {
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public double add(double a,double b)
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{
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return a+b;
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}
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public double min(double a,double b)
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{
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return a-b;
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}
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public double mul(double a,double b)
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{
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return a*b;
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}
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public double div(double a,double b)
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{
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if(b!=0)
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return a/b;
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else
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return 0;
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}
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}
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