From 22af2a33442edd0f94b6cfda0197ab37393901d2 Mon Sep 17 00:00:00 2001
From: Martin Goik <goik@hdm-stuttgart.de>
Date: Tue, 18 Nov 2014 20:42:09 +0100
Subject: [PATCH] Correcting App file, adding power series calculation hint
---
.../de/hdm_stuttgart/mi/sd1/main/Driver.java | 4 +-
Sd1/swd1.xml | 65 +++++++++++++++++++
2 files changed, 67 insertions(+), 2 deletions(-)
diff --git a/Sd1/P/Array/integerStoreUnbounded/src/main/java/de/hdm_stuttgart/mi/sd1/main/Driver.java b/Sd1/P/Array/integerStoreUnbounded/src/main/java/de/hdm_stuttgart/mi/sd1/main/Driver.java
index 8d77b2bfc..fff2ebca8 100644
--- a/Sd1/P/Array/integerStoreUnbounded/src/main/java/de/hdm_stuttgart/mi/sd1/main/Driver.java
+++ b/Sd1/P/Array/integerStoreUnbounded/src/main/java/de/hdm_stuttgart/mi/sd1/main/Driver.java
@@ -20,10 +20,10 @@ public class Driver {
store.addValue(-5);
store.addValue(24);
- System.out.println("Store contains " + store.getNumValues() + " values");
+ System.out.println("Store contains " + store.getNumValues() + " values:");
for (int i = 0; i < store.getNumValues(); i++) {
- System.out.println(i + ":" + store.getNumValues() + " values");
+ System.out.println("Value " + (i + 1) + ": " + store.getValue(i));
}
}
}
diff --git a/Sd1/swd1.xml b/Sd1/swd1.xml
index 48ace6052..84125f505 100644
--- a/Sd1/swd1.xml
+++ b/Sd1/swd1.xml
@@ -3822,6 +3822,71 @@ public class Math {
<para>Do not forget to provide suitable
<command>Javadoc</command> comments and watch the generated
documentation.</para>
+
+ <para>Hints:</para>
+
+ <itemizedlist>
+ <listitem>
+ <para>You should only use basic arithmetic operations like
+ +, - * and /. Do not use <link
+ xlink:href="https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html#pow-double-double-">Math.pow(double
+ a, double b)</link> and friends! Their implementations use
+ power series expansions as well and are designed for a
+ different purpose like having fractional exponent
+ values.</para>
+ </listitem>
+
+ <listitem>
+ <para>The power series' elements may be obtained in a
+ recursive fashion like e.g.:</para>
+
+ <informalequation>
+ <m:math display="block">
+ <m:mrow>
+ <m:mfrac>
+ <m:msup>
+ <m:mi>x</m:mi>
+
+ <m:mi>3</m:mi>
+ </m:msup>
+
+ <m:mrow>
+ <m:mi>3</m:mi>
+
+ <m:mo>!</m:mo>
+ </m:mrow>
+ </m:mfrac>
+
+ <m:mo>=</m:mo>
+
+ <m:mrow>
+ <m:mfrac>
+ <m:mi>x</m:mi>
+
+ <m:mn>3</m:mn>
+ </m:mfrac>
+
+ <m:mo></m:mo>
+
+ <m:mfrac>
+ <m:msup>
+ <m:mi>x</m:mi>
+
+ <m:mi>2</m:mi>
+ </m:msup>
+
+ <m:mrow>
+ <m:mi>2</m:mi>
+
+ <m:mo>!</m:mo>
+ </m:mrow>
+ </m:mfrac>
+ </m:mrow>
+ </m:mrow>
+ </m:math>
+ </informalequation>
+ </listitem>
+ </itemizedlist>
</question>
<answer>
--
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