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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 13: Water distribution"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.2: Example_1.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"p1=7.8//ft\n",
+"p2=6.0//ft\n",
+"p3=7.4//ft\n",
+"p4=6.5//ft\n",
+"p=7.6//ft\n",
+"h=1.0//ft\n",
+"h1=6.7//ft\n",
+"p5=3.3//ft\n",
+"//CALCULATIONS\n",
+"D=p1-p2//mgd\n",
+"D1=p1-p3//mgd\n",
+"D2=p-p4//mgd\n",
+"D3=p4+h//mgd\n",
+"D4=h1-p5//mgd\n",
+"//RESULTS\n",
+"printf('the demand is taken =% f mgd',D3)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.3: Example_2.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"w=500//ft\n",
+"p=20//psig\n",
+"h=40//psig\n",
+"h1=1000//in\n",
+"q=1250//ft\n",
+"g=2.308/0.75//ft\n",
+"g1=2.308/1.00//ft\n",
+"s=5200//gpm\n",
+"a=250//gpm\n",
+"//CALCULATIONS\n",
+"H=[h1-(1/2)*(w)]//ft\n",
+"H1=(h-p)*g//percent\n",
+"Q=[q-(1/2)*(w)]//ft\n",
+"Q1=(h-p)*g1//percent\n",
+"S=s/a//gpm\n",
+"//RESULTS\n",
+"printf('the number of standard fire streams=% f gpm',S)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.6: Example_3.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"h1=2.1*3//ft\n",
+"h2=2.1//ft\n",
+"h=8.4//ft\n",
+"p=1000//ft\n",
+"h3=5.7//ft\n",
+"h4=4.2*3//ft\n",
+"q=4.2//ft\n",
+"s=1.68//ft\n",
+"q1=1.33//ft\n",
+"//CALCULATIONS\n",
+"A=p*h/h2//ft\n",
+"B=p*(h3+h4)/q//ft\n",
+"C=p*(h1+h2)/s//ft\n",
+"//RESULTS\n",
+"printf('the equilent pipe for the Hazen willians coefficent=% f ft',A)\n",
+"printf('the equilent pipe for the Hazen willians coefficent=% f ft',B)\n",
+"printf('the equilent pipe for the Hazen willians coefficent=% f ft',C)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.8: Example_4.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"d=10//hr\n",
+"p=50000//in\n",
+"a=7.5//mgd\n",
+"w=0.75//mg\n",
+"s=5.03//mg\n",
+"//CALCULATIONS\n",
+"S=s/w//mg\n",
+"P=S-s//mg\n",
+"//RESULTS\n",
+"printf('a steady gravity supply equal to maximum daily=% f mg',P)"
+   ]
+   }
+],
+"metadata": {
+		  "kernelspec": {
+		   "display_name": "Scilab",
+		   "language": "scilab",
+		   "name": "scilab"
+		  },
+		  "language_info": {
+		   "file_extension": ".sce",
+		   "help_links": [
+			{
+			 "text": "MetaKernel Magics",
+			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+			}
+		   ],
+		   "mimetype": "text/x-octave",
+		   "name": "scilab",
+		   "version": "0.7.1"
+		  }
+		 },
+		 "nbformat": 4,
+		 "nbformat_minor": 0
+}