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--- python:dierbach:chapter_1_python_first_steps [2016/07/28 02:23] – [Define the problem] mithat
+++ python:dierbach:chapter_1_python_first_steps [2016/07/28 04:20] – [More about print()] mithat
@@ Line 1: / Line 1: @@
 ~~SLIDESHOW~~
+~~NOTOC~~
 ====== Python first steps ======
@@ Line 8: / Line 9: @@
   * Syntax is easy to read.
-  * Interpreted and can be executed interactively.
+  * Interpreted
+  * Can be executed interactively.
   * Huge community.
     * Lots of support.
@@ Line 15: / Line 17: @@
 ===== IDLE =====
-  * IDLE is Python's 'standard' IDE.
+  * [[https://docs.python.org/3/library/idle.html|IDLE]] is Python's "standard" IDE.
   * Good for starting to learn Python.
   * Many [[https://wiki.python.org/moin/IntegratedDevelopmentEnvironments)|other IDEs]].
@@ Line 97: / Line 99: @@
 ===== Using IDLE to develop a program =====
-  * Create a new program file with //File > New File// or //Ctrl+N// on Linux and Windows.
+  * Create a new program file with //File > New File// or //Ctrl+N// (Linux and Windows).
-  * Write code:
+  * Write some code:
 <code python>
 name = input('What do I call you? ')
@@ Line 157: / Line 159: @@
 num_balloons = int(input('How many balloons? '))
 </code>
+===== More about print() =====
+  * You can print more than one thing with ''print()''.
+  * Separate each thing with a comma.
+<code python>
+>>> num = 99
+>>> print("There are", num, "balloons.")
+There are 99 balloons
+</code>
+  * Each "thing" will be converted into a string.
 ===== A slightly more substantial program =====
@@ Line 245: / Line 257: @@
 Oops (again).
-===== Code the solution (last time) =====
+===== Code the solution (last time?) =====
 <file python exponent_calculator.py>
@@ Line 266: / Line 278: @@
 </code>
-Success.
+Success. But we can do better...
+===== Code the solution (last time!) =====
+<file python exponent_calculator.py>
+# Exponent Calculator
+# Exponent Calculator
+# Calculate a base to an exponent's power.
+# Mithat Konar
+base = int(input('Enter the base: '))
+exponent = int(input('Enter the exponent: '))
+result = base ** exponent
+print(base, 'to the power of', exponent, 'is', result)
+</file>
+===== Test the solution =====
+<code python>
+>>> Enter the base: 10
+>>> Enter the exponent: 4
+>>> 10 to the power of 4 is 10000
+</code>
+The code is easier to read and it still works.
 ===== Document the solution =====