From 1b1b5f64b330ce24dba5f6b647961659b205111c Mon Sep 17 00:00:00 2001
From: cprutean <cip.pruteanu@ed.ac.uk>
Date: Fri, 8 Sep 2023 12:53:25 +0100
Subject: [PATCH] Update 5 files
- /CodeExamples/QuadraticFunction.ipynb
- /CodeExamples/PointsInCircle.ipynb
- /CodeExamples/ListofFunctions.ipynb
- /CodeExamples/FunctionFromCommand.ipynb
- /CodeExamples/CodeExamples.ipynb
---
CodeExamples/CodeExamples.ipynb | 102 ++++++++++++++++++++-----
CodeExamples/FunctionFromCommand.ipynb | 80 +++++++++++++++++++
CodeExamples/ListofFunctions.ipynb | 79 +++++++++++++++++++
CodeExamples/PointsInCircle.ipynb | 98 ++++++++++++++++++++++++
CodeExamples/QuadraticFunction.ipynb | 32 +++++---
5 files changed, 364 insertions(+), 27 deletions(-)
create mode 100644 CodeExamples/FunctionFromCommand.ipynb
create mode 100644 CodeExamples/ListofFunctions.ipynb
create mode 100644 CodeExamples/PointsInCircle.ipynb
diff --git a/CodeExamples/CodeExamples.ipynb b/CodeExamples/CodeExamples.ipynb
index 9627edf..299162d 100644
--- a/CodeExamples/CodeExamples.ipynb
+++ b/CodeExamples/CodeExamples.ipynb
@@ -28,39 +28,103 @@
"\n",
"Set of examples for reading and writing to simple text file.\n",
"\n",
- "> [ReadTextFile](ReadTextFile.ipynb): Read a text file and print out again (discussed \"\\n\" problem with print()).\n",
- "\n",
- "> [WriteFile](WriteFile.ipynb): Writes a bit of text (and culture) to a file. (this write / overwrites \"burns.txt\").\n",
- "\n",
- "> [RangeLooptoFile](RangeLooptoFile.ipynb): Write data to a file from a loop.\n",
- "\n",
- "> [LineCount](LineCount.ipynb): Open a file and countv the number of lines (with error trap for wrong filename).\n",
- "\n",
- "> [ImageShow](ImageShow.ipynb): Read and display an image file using Matplotlib.\n",
+ "> [ReadTextFile](ReadTextFile.ipynb): Read a text file and print out again (discussed \"\\n\" problem with print()). \n",
+ "> [WriteFile](WriteFile.ipynb): Writes a bit of text (and culture) to a file. (this write / overwrites \"burns.txt\"). \n",
+ "> [RangeLooptoFile](RangeLooptoFile.ipynb): Write data to a file from a loop. \n",
+ "> [LineCount](LineCount.ipynb): Open a file and countv the number of lines (with error trap for wrong filename). \n",
+ "> [ImageShow](ImageShow.ipynb): Read and display an image file using Matplotlib. \n",
"\n",
"Data supplied\n",
"\n",
"> [burns.txt](burns.txt): A bit of culture !!! \n",
"> [cosdata.txt](cosdata.txt): Output from RangeLooptoFile.py \n",
- "> [sample.txt](sample.txt): Data for [Checkpoint 4](../Checkpoints/Checkpoint4.ipynb). \n",
+ "> [sample.txt](sample.txt): Data for [Checkpoint 4](../Checkpoints/Checkpoint4.ipynb). \n",
"> [stones.jpg](stones.jpg):\tStones on Scottish beach. \n",
"\n",
"- ## Format\n",
"\n",
"Example Python programs to show formatted output.\n",
"\n",
- "> [FloatFormat](FloatFormat.ipynb): Example of formatting floats with .format()\n",
- "\n",
- "> [IntegerFormat](IntegerFormat.ipynb): Example of specifying and printing int in various bases.\n",
+ "> [FloatFormat](FloatFormat.ipynb): Example of formatting floats with .format() \n",
+ "> [IntegerFormat](IntegerFormat.ipynb): Example of specifying and printing int in various bases. \n",
"\n",
"- ## Functions\n",
"\n",
+ "Example Python programs to illustrate the simple use of functions.\n",
+ "\n",
+ "> [QuadraticFunction](QuadraticFunction.ipynb): Function for quadratic and how to use it. \n",
+ "> [TemperatureConverter](TemperatureConverter.ipynb): Fahrenheit to / from Celsius functions (see in mini-lectures). \n",
+ "> [PlanckPlot](PlanckPlot.ipynb): Plot the Planck radiation cuurve (details of plotting in ***Plotting*** example section). \n",
+ "\n",
+ "- ## Further Functions\n",
+ "\n",
+ "This set contains some more advanced use of functions. \n",
+ "\n",
+ "> [PointsInCircle](PointsInCircle.ipynb): Use of function to return two floats as a list, and also some more advanced Matplotlib to display scatter plots and annonate graphs. \n",
+ "> [FunctionPlot](FunctionPlot.ipynb): Passing a function as the argument to another function, also returning lists from functions. \n",
+ "> [ListofFunctions](ListofFunctions.ipynb): Show that functions can be held in a list and the list elements can be called as functions. Shows the flexibility of lists, but this is not good programming style. \n",
+ "> [FunctionFromCommand](FunctionFromCommand.ipynb): Show functions names being entered from command line and then called.\n",
+ "\n",
+ "- ## Getting Started\n",
+ "\n",
+ "This theme contains a series of simple starter Python programs, these being: \n",
+ "\n",
+ "> [Hello](Hello.ipynb): Minimal Hello World program with single print. \n",
+ "> [ReadingandPrintingStrings](ReadingandPrintingStrings.ipynb): Read a string by input() and print it. \n",
+ "> [ReadingandPrintingStringsMain](ReadingandPrintingStringsMain.ipynb): Read a string by input() and print it using a main() structure. \n",
+ "> [ReadingandPrintingFloats](ReadingandPrintingFloats.ipynb): Read a single float and print it out as a string. \n",
+ "> [ReadingandFormatFloatsMain](ReadingandFormatFloatsMain.ipynb): Read a single float and print it out as a string using a main() structure. \n",
+ "> [ReadingandFormatFloats](ReadingandFormatFloats.ipynb): Read float, form *10^6 and ^2, and print out. \n",
+ "> [ReadingandFormatFloatsMain](ReadingandFormatFloatsMain.ipynb): Read float, form *10^6 and ^2, and print out using a main() structure. \n",
+ "> [ReadingIntandFloat](ReadingIntandFloat.ipynb): Read in int and float, and perform some basic arithmetic and print. \n",
+ "> [ReadingIntandFloatMain](ReadingIntandFloatMain.ipynb): Read in int and float, and perform some basic arithmetic and print using a main() structure. \n",
+ "\n",
+ "- ## Lists\n",
+ "\n",
+ "Set of simple list example, there are more extensive examples on the use of lists in the section on [Loops](../CourseNotes/loops.ipynb).\n",
+ "\n",
+ "> [MakeandAppendList](MakeandAppendList.ipynb): Simple example to make a list of integers and append an extra element. \n",
+ "> [AppendFunction](AppendFunction.ipynb): A general simple append function that works for any object that implements the \"+\" operator. \n",
+ "> [ExtractSublist](ExtractSublist.ipynb): Example of extracting a sublist and adding lists together. \n",
+ "> [SortFunction](SortFunction.ipynb): A conceptually more complex use of a function operating on a list, rather more complex operation (not really needed in this course). \n",
+ "\n",
+ "- ## Loops\n",
+ "\n",
+ "This theme contains example programs with simple loops.\n",
+ "\n",
+ "> [RangeLoop.ipynb](RangeLoop.ipynb): Loop to print out theta, cos(theta). \n",
+ "> [RangeLooptoList](RangeLooptoList.ipynb): For loop to list of theta, cos(theta) and print. \n",
+ "> [WhileLooptoList](WhileLooptoList.ipynb): Alternative version of above using while loop. \n",
+ "> [GuessGame](GuessGame.ipynb): Simple interactive guess game to guess an int with while loop. \n",
+ "\n",
+ "- ## Maths\n",
+ "\n",
+ "Set of Python example programs illustrating basic mathematics and how to call functions from the math module. \n",
+ "\n",
+ "> EvaluateQuadratic.py evaluates a a*x**2 + b*c + c quadtartic\n",
+ "\n",
+ "> EvaluateSinCos.py\t converts angle from degrees to radians and evaluates\n",
+ "\t\t\t sin / cos functions.\n",
+ "\n",
+ "> Cosine Rule.py\t\t Calculate side lengths and angles of a triangle\n",
+ " \t\t\t using cosine and sine rules.\n",
+ "\n",
+ "> BasicComplex.py\t\t Basic use of complex, read complex, basic calcualtion\n",
+ "\t\t\t and display\n",
+ "\n",
+ "> MultiplyByLogs.py\t demonestrates using log / exp to perform\n",
+ "\t\t\t multiplication and division.\n",
+ "\n",
+ "> MultiplyByLogsNegativeFixed.by same as program above but with fix to\n",
+ "\t\t\t\tdeal with negative numbers\n",
+ "\t\t\t\t(a bit more compicated)\n",
+ "\n",
+ "> EvaluateInput.py\t\texample of using eval() to evalate a string to float() and complex().\n",
+ "\t\t\t\tThis replicates the old Phyton 2 behaviour.\n",
+ "\n",
+ "> ComplexImpedance.py\t Application of complex to calculate the complex\n",
+ "\t\t\t impedance of LRC circuit.\n",
"\n",
- "- Further Functions\n",
- "- Getting Started\n",
- "- Lists\n",
- "- Loops\n",
- "- Maths\n",
"- MoreComplex\n",
"- Objects\n",
"- Plotting\n",
@@ -77,6 +141,7 @@
"- [FlightPlot](FlightPlot.ipynb)\n",
"- [FloatFormat](FloatFormat.ipynb)\n",
"- [FunctionCall](FunctionCall.ipynb)\n",
+ "- [FunctionFromCommand](FunctionFromCommand.ipynb)\n",
"- [FunctionPlot](FunctionPlot.ipynb)\n",
"- [GaussianNoisePlot](GaussianNoisePlot.ipynb)\n",
"- [GuessGame](GuessGame.ipynb)\n",
@@ -89,6 +154,7 @@
"- [OneWayConditional](OneWayConditional.ipynb)\n",
"- [PiExample](PiExample.ipynb)\n",
"- [PlanckPlot](PlanckPlot.ipynb)\n",
+ "- [PointsInCircle](PointsInCircle.ipynb)\n",
"- [PrintList](PrintList.ipynb)\n",
"- [QuadraticFunction](QuadraticFunction.ipynb)\n",
"- [QuadraticPlot](QuadraticPlot.ipynb)\n",
diff --git a/CodeExamples/FunctionFromCommand.ipynb b/CodeExamples/FunctionFromCommand.ipynb
new file mode 100644
index 0000000..c3d36e9
--- /dev/null
+++ b/CodeExamples/FunctionFromCommand.ipynb
@@ -0,0 +1,80 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "id": "6838b2de",
+ "metadata": {},
+ "source": [
+ "# Hello"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "4200d243",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "\"\"\"\n",
+ " Example program to show that you read in a function name from the\n",
+ " command line and then ececute it\n",
+ "\n",
+ " Try with fnOne, fnTwo, it it also works for math.cos, math.sin, math.log etc\n",
+ "\"\"\"\n",
+ "\n",
+ "import math\n",
+ "\n",
+ "\n",
+ "def fnOne(y):\n",
+ " \"\"\"\n",
+ " Create a function\n",
+ " \"\"\"\n",
+ " print(\"Funcion one called with y = \" + str(y))\n",
+ " return y # Just return the given vaue\n",
+ "\n",
+ "\n",
+ "def fnTwo(y):\n",
+ " \"\"\"\n",
+ " Create a second function\n",
+ " \"\"\"\n",
+ " print(\"Funcion two called with y = \" + str(y))\n",
+ " return 2*y # Just return double the value\n",
+ "\n",
+ "\n",
+ "def main():\n",
+ "\n",
+ " while True: # Keep in a loop\n",
+ " fn = eval(input(\"function : \")) # Read in functioon name NOTE: eval()\n",
+ " y = float(input(\"y value : \")) # Get a parameter value\n",
+ "\n",
+ " z = fn(y) # Call function read in\n",
+ " print(\"Value returned is : \" + str(z))\n",
+ "\n",
+ "\n",
+ "if __name__ == \"__main__\":\n",
+ " main()"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3 (ipykernel)",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.9.7"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/CodeExamples/ListofFunctions.ipynb b/CodeExamples/ListofFunctions.ipynb
new file mode 100644
index 0000000..fae21e9
--- /dev/null
+++ b/CodeExamples/ListofFunctions.ipynb
@@ -0,0 +1,79 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "id": "6838b2de",
+ "metadata": {},
+ "source": [
+ "# Hello"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "4200d243",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "\"\"\"\n",
+ " Example program to create a list of fucntions and then call them from\n",
+ " a loop.\n",
+ "\n",
+ " This program illustrated the flexibility of functions, also that you can have\n",
+ " list of anything, in this case you have a list of functions !!\n",
+ "\n",
+ " This is a rather dangerous language feature and while it shows the flexibility of lists and\n",
+ " functions, it is not an advised progarmming method since the scope for obscure code is\n",
+ " unlimited.\n",
+ "\n",
+ "\"\"\"\n",
+ "\n",
+ "\n",
+ "import math\n",
+ "\n",
+ "def myFn(y):\n",
+ " # Create own local function that returns a value\n",
+ " return 1 - math.erf(y)\n",
+ "\n",
+ "def main():\n",
+ "\n",
+ " # Make a list of, both from math library and lovcal\n",
+ " functions = [math.cos,math.sin,math.tan,myFn]\n",
+ "\n",
+ "\n",
+ " x = float(input(\"X value : \")) # Read in float from command line\n",
+ "\n",
+ " for fn in functions: # Access the list of functions\n",
+ " y = fn(x) # Use each elemenst of the list as a function.\n",
+ "\n",
+ " print(\"Value from \" + str(fn) + \" is : \" + str(y))\n",
+ " # Note str(fn) gives the correct information but in rather messeg way.\n",
+ "\n",
+ "\n",
+ "\n",
+ "main()\n"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3 (ipykernel)",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.9.7"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/CodeExamples/PointsInCircle.ipynb b/CodeExamples/PointsInCircle.ipynb
new file mode 100644
index 0000000..3ac32de
--- /dev/null
+++ b/CodeExamples/PointsInCircle.ipynb
@@ -0,0 +1,98 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "id": "6838b2de",
+ "metadata": {},
+ "source": [
+ "# Hello"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "4200d243",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "\n",
+ "\"\"\"\n",
+ " Use a function to get x,y position of random points in a circle\n",
+ " and plot out the restuls with a few more new MatPlotLib features\n",
+ "\"\"\"\n",
+ "\n",
+ "import random\n",
+ "import matplotlib.pyplot as plt # Standard Matplotlib import\n",
+ "from matplotlib.patches import Circle # Add circle from the patches module\n",
+ "\n",
+ "def getpoint(radius = 1.0):\n",
+ " \"\"\"\n",
+ " Function to get a random point in a circle of specified radius and return\n",
+ " [x,y] as a list of floats\n",
+ "\n",
+ " :param radius: the circle radius (Default = 1.0)\n",
+ " :type radius: float\n",
+ " :return: [x,y]\n",
+ " \"\"\"\n",
+ " while True: # Go round loop forming x,y point\n",
+ " x = random.uniform(-radius,radius)\n",
+ " y = random.uniform(-radius,radius)\n",
+ " if x*x + y*y <= radius*radius: # In in circle, sucess break out of loop\n",
+ " break\n",
+ "\n",
+ " return x,y # Return the x,y point as a list\n",
+ "\n",
+ "\n",
+ "def main():\n",
+ " # Get number of points and radius of circlde\n",
+ " npoint = int(input(\"Number of points : \"))\n",
+ " radius = float(input(\"Radius : \"))\n",
+ "\n",
+ " xData = [] # Lists to hold x,y coordinates\n",
+ " yData = []\n",
+ "\n",
+ " # Go round while loop getting point\n",
+ " while npoint > 0:\n",
+ " xpt,ypt = getpoint(radius) # use function to get point\n",
+ " xData.append(xpt) # Add points to lists\n",
+ " yData.append(ypt)\n",
+ " npoint -= 1\n",
+ "\n",
+ "\n",
+ " # Some more complex Matplot lib plotting (more flexible)\n",
+ " fig,ax = plt.subplots() # Get figure and axis of default plot\n",
+ " ax.scatter(xData,yData) # Plot points in axis as scatter plot\n",
+ " # Add a unfilled circle at (0,0) of colour \"r\"\n",
+ " ax.add_artist(Circle((0,0),radius,color = \"r\",fill = False))\n",
+ " ax.axhline(y=0, color='r') # Add horizonal line though y = 0\n",
+ " ax.axvline(x=0, color='r') # Add vertical line though x = 0\n",
+ " ax.axis(\"equal\") # Set scale of axis to be equal in x,y\n",
+ " plt.title(\"Scatter Plot\") # Add a ittle to the main plot\n",
+ " plt.show() # Show the plot\n",
+ "\n",
+ "main()"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3 (ipykernel)",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.9.7"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/CodeExamples/QuadraticFunction.ipynb b/CodeExamples/QuadraticFunction.ipynb
index 837c3cc..efe4d29 100644
--- a/CodeExamples/QuadraticFunction.ipynb
+++ b/CodeExamples/QuadraticFunction.ipynb
@@ -16,24 +16,38 @@
"outputs": [],
"source": [
"\"\"\"\n",
- " Example of a function to calculate the value of a quadratic\n",
+ " Example of a function to calculate the value of a quadratic.\n",
+ " \n",
+ "\n",
"\"\"\"\n",
"\n",
"def quadratic(a , b, c, x):\n",
" \"\"\"\n",
- " Calcuate a quadratic of for a*x**2 + b*x + c and return a float value\n",
+ " Function to calculate a quadratic of for a*x**2 + b*x + c and return a float value.\n",
+ " Note contents of function are indented.\n",
" \"\"\"\n",
+ " # Do the calcualtion \n",
" y = a*x**2 + b*x + c\n",
- " return float(y) # Return value and make sure it is a float\n",
+ " # Return the value of y at a float\n",
+ " return float(y)\n",
"\n",
"\n",
"def main():\n",
- " a = 4.0\n",
- " b = 6.0\n",
- " c = -10.0\n",
- " x = float(input(\"Give x value : \"))\n",
- " y = quadratic(a,b,c,x)\n",
- " print(\"Value of quadratic is : \" + str(y))\n",
+ " \n",
+ " # Create the three coefficients as floats of specified values\n",
+ " aval = 4.0\n",
+ " bval = 6.0\n",
+ " cval = -10.0\n",
+ " \n",
+ " # get a x value from the keyboad\n",
+ " xval = float(input(\"Give x value : \"))\n",
+ " \n",
+ " # call the quadratic function with the specified values\n",
+ " # Note: the varable names are diffent; its the value that is passed.\n",
+ " yval = quadratic(aval,bval,cval,xval)\n",
+ " \n",
+ " # print the returned value.\n",
+ " print(\"Value of quadratic is : \" + str(yval))\n",
"\n",
"main()"
]
--
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