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-rw-r--r--Help/guide/tutorial/MultiPackage/tutorial.cxx25
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diff --git a/Help/guide/tutorial/MultiPackage/tutorial.cxx b/Help/guide/tutorial/MultiPackage/tutorial.cxx
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+// A simple program that computes the square root of a number
+#include <iostream>
+#include <string>
+
+#include "MathFunctions.h"
+#include "TutorialConfig.h"
+
+int main(int argc, char* argv[])
+{
+ if (argc < 2) {
+ std::cout << argv[0] << " Version " << Tutorial_VERSION_MAJOR << "."
+ << Tutorial_VERSION_MINOR << std::endl;
+ std::cout << "Usage: " << argv[0] << " number" << std::endl;
+ return 1;
+ }
+
+ // convert input to double
+ double inputValue = std::stod(argv[1]);
+
+ const double outputValue = mathfunctions::sqrt(inputValue);
+
+ std::cout << "The square root of " << inputValue << " is " << outputValue
+ << std::endl;
+ return 0;
+}