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@@ -6,18 +6,22 @@ public class CalcEngine {
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6
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}
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public double add(double v, double v1) {
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- return Double.NaN;
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+
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+ return v + v1;
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}
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public double subtract(double v, double v1) {
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- return Double.NaN;
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+
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+ return v - v1;
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}
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public double multiply(double v, double v1) {
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- return Double.NaN;
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+
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+ return v * v1;
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}
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public double divide(double v, double v1) {
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- return Double.NaN;
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+
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+ return v / v1;
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}
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}
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