**Cost Price, Markup, Discount, & Profit and eTCL demo example slot calculator, numerical analysis** This page is under development. Comments are welcome, but please load any comments in the comments section at the bottom of the page. Please include your wiki MONIKER in your comment with the same courtesy that I will give you. Its very hard to reply intelligibly without some background of the correspondent. Thanks,[gold] ---- <> **Introduction** [gold] Here is some eTCL starter code for Cost Price and Markup in calculator shell. ---- **Pseudocode Section** ====== # using pseudocode # possible problem instances, initialize algorithm_result = 1. check algorithm f(solution) =? initial product check_sum = a+b+c+d+e set answers and printout with resulting values pseudocode: need test cases > small,medium, giant pseudocode: need testcases within range of expected operation. pseudocode: are there any cases too small or large to be solved? ====== ***Testcases Section*** In planning any software, it is advisable to gather a number of testcases to check the results of the program. The math for the testcases can be checked by pasting statements in the TCL console. Aside from the TCL calculator display, when one presses the report button on the calculator, one will have console show access to the capacity functions (subroutines). **** Testcase 1 **** %|table 1|printed in| tcl wiki format|% &| quantity| value| comment, if any|& &| 1:|testcase_number | |& &| 100.0 :|cost price units | |& &| 50.0 :|markup percent | |& &| 10.0 :|sticker discount | |& &| 10.0 :|number of items sold | |& &| 50.0 :|answers: mark_up units | |& &| 40.0 :|profit on one item units | |& &| 400.0 :|total profits on all items units | |& &| 140.0 :|rounded sticker price units | |& &| 140.00 :|sticker price units | |& **** Testcase 2 **** %|table 2|printed in| tcl wiki format|% &| quantity| value| comment, if any|& &| 2:|testcase_number | |& &| 50.0 :|cost price units | |& &| 50.0 :|markup percent | |& &| 10.0 :|sticker discount | |& &| 10.0 :|number of items sold | |& &| 25.0 :|answers: mark_up units | |& &| 20.0 :|profit on one item units | |& &| 200.0 :|total profits on all items units | |& &| 70.0 :|rounded sticker price units | |& &| 70.000 :|sticker price units | |& **** Testcase 3 **** %|table 3|printed in| tcl wiki format|% &| quantity| value| comment, if any|& &| 3:|testcase_number | |& &| 1000.0 :|cost price units | |& &| 50.0 :|markup percent | |& &| 10.0 :|sticker discount | |& &| 10.0 :|number of items sold | |& &| 500.0 :|answers: mark_up units | |& &| 400.0 :|profit on one item units | |& &| 4000.0 :|total profits on all items units | |& &| 1400.0 :|rounded sticker price units | |& &| 1400.0 :|sticker price units | |& ---- ***Screenshots Section*** ****figure 1.**** [Babylonian Combined Work Norm Algorithm and eTCL Slot Calculator screenshot ] ---- ***References:*** * [Oneliner's Pie in the Sky] * [One Liners] * [Category Algorithm] * [Babylonian Number Series and eTCL demo example calculator] * [Brahmagupta Area of Cyclic Quadrilateral and eTCL demo example calculator] * [Gauss Approximate Number of Primes and eTCL demo example calculator] * Taking a Weighted Average, Dr Math, mathforum.org/dr.math, dated 03/20/2003 * google , mathforum.org/dr.math * Using Weighted Criteria to Make Decisions, Dr Math>, mathforum.org/dr.math, dated 07/18/2008 * google * harmonic mean discussed in [Additional math functions] * harmonic mean discussed in [Tcl Normalized Extended Benchmarks] * see arithmetic mean on tcl-wiki [Stats] 2011-05-22, [RLE] * see similar 1/(1/nth) terms method used in * [Babylonian Combined Market Rates and eTCL demo example calculator, numerical analysis ] **Appendix Code** ***appendix TCL programs and scripts *** ====== # pretty print from autoindent and ased editor # Cost Price Markup calculator # written on Windows XP on eTCL # working under TCL version 8.5.6 and eTCL 1.0.1 # gold on TCL WIKI, 2mar2017 package require Tk package require math::numtheory namespace path {::tcl::mathop ::tcl::mathfunc math::numtheory } set tcl_precision 17 frame .frame -relief flat -bg aquamarine4 pack .frame -side top -fill y -anchor center set names {{} {cost price units :} } lappend names {markup percent:} lappend names {sticker discount: } lappend names {number of items sold: } lappend names {answers: mark_up units:} lappend names {profit on one item units : } lappend names {total profits on all items units: } lappend names {sticker price units :} foreach i {1 2 3 4 5 6 7 8} { label .frame.label$i -text [lindex $names $i] -anchor e entry .frame.entry$i -width 35 -textvariable side$i grid .frame.label$i .frame.entry$i -sticky ew -pady 2 -padx 1 } proc about {} { set msg "Calculator for Cost Price Markup from TCL WIKI, written on eTCL " tk_messageBox -title "About" -message $msg } proc ::tcl::mathfunc::precision {precision float} { # tcl:wiki:Floating-point formatting, [AM] set x [ format "%#.5g" $float ] return $x } proc calculate { } { global answer2 global side1 side2 side3 side4 side5 global side6 side7 side8 global testcase_number incr testcase_number set side1 [* $side1 1. ] set side2 [* $side2 1. ] set side3 [* $side3 1. ] set side4 [* $side4 1. ] set side5 [* $side5 1. ] set side6 [* $side6 1. ] set side7 [* $side7 1. ] set side8 [* $side8 1. ] set side6 $side1 set side7 $side2 set cost_price $side1 set mark_up_percent $side2 set discount_percent $side3 set total_items_sold $side4 set marked_price [* $cost_price [/ [+ 100. $mark_up_percent [* -1. $discount_percent] ] 100. ]] set mark_up_units [* $cost_price [/ $mark_up_percent 100. ]] set discount_units [* $cost_price [/ $discount_percent 100. ]] set profit_units [- $marked_price $cost_price] set total_profits_units [* $profit_units $total_items_sold ] set side5 $mark_up_units set side6 $profit_units set side7 $total_profits_units set side8 $marked_price } proc fillup {aa bb cc dd ee ff gg hh} { .frame.entry1 insert 0 "$aa" .frame.entry2 insert 0 "$bb" .frame.entry3 insert 0 "$cc" .frame.entry4 insert 0 "$dd" .frame.entry5 insert 0 "$ee" .frame.entry6 insert 0 "$ff" .frame.entry7 insert 0 "$gg" .frame.entry8 insert 0 "$hh" } proc clearx {} { foreach i {1 2 3 4 5 6 7 8 } { .frame.entry$i delete 0 end } } proc reportx {} { global answer2 global side1 side2 side3 side4 side5 global side6 side7 side8 global testcase_number console show; puts "%|table $testcase_number|printed in| tcl wiki format|% " puts "&| quantity| value| comment, if any|& " puts "&| $testcase_number:|testcase_number | |&" puts "&| $side1 :|cost price units | |&" puts "&| $side2 :|markup percent | |& " puts "&| $side3 :|sticker discount | |& " puts "&| $side4 :|number of items sold | |&" puts "&| $side5 :|answers: mark_up units | |&" puts "&| $side6 :|profit on one item units | |&" puts "&| $side7 :|total profits on all items units | |&" puts "&| $side8 :|rounded sticker price units | |&" puts "&| [ ::tcl::mathfunc::precision 5 $side8] :|sticker price units | |&" } frame .buttons -bg aquamarine4 ::ttk::button .calculator -text "Solve" -command { set side8 0 ; calculate } ::ttk::button .test2 -text "Testcase1" -command {clearx;fillup 100.0 50. 10.0 10.0 50.0 40. 400.0 140.0} ::ttk::button .test3 -text "Testcase2" -command {clearx;fillup 50.0 50.0 10.0 10.00 25.0 20.0 200.0 70.0} ::ttk::button .test4 -text "Testcase3" -command {clearx;fillup 1000.0 50.0 10.0 10.0 500.0 400.0 4000.0 1400.0} ::ttk::button .clearallx -text clear -command {clearx } ::ttk::button .about -text about -command {about} ::ttk::button .cons -text report -command { reportx } ::ttk::button .exit -text exit -command {exit} pack .calculator -in .buttons -side top -padx 10 -pady 5 pack .clearallx .cons .about .exit .test4 .test3 .test2 -side bottom -in .buttons grid .frame .buttons -sticky ns -pady {0 10} . configure -background aquamarine4 -highlightcolor brown -relief raised -border 30 wm title . "Cost Price Markup Calculator" # end of deck ====== ---- *** Pushbutton Operation*** For the push buttons, the recommended procedure is push testcase and fill frame, change first three entries etc, push solve, and then push report. Report allows copy and paste from console. For testcases in a computer session, the eTCL calculator increments a new testcase number internally, eg. TC(1), TC(2) , TC(3) , TC(N). The testcase number is internal to the calculator and will not be printed until the report button is pushed for the current result numbers. The current result numbers will be cleared on the next solve button. The command { calculate; reportx } or { calculate ; reportx; clearx } can be added or changed to report automatically. Another wrinkle would be to print out the current text, delimiters, and numbers in a TCL wiki style table as ====== puts " %| testcase $testcase_number | value| units |comment |%" puts " &| volume| $volume| cubic meters |based on length $side1 and width $side2 |&" ====== ---- ---- **Snippet Pseudocode formula** ====== #Pseudocode weighted mean3 formula =( norm1 + norm2 ) / ( norm1 / rate1 + norm2 / rate2 ) set weighted_mean3 [ expr {(norm1+norm2)/((norm1/rate1)+(norm2/rate2)) }] set weighted_mean3 [/ [+ norm1 norm2 ] [+ [/ norm1 rate1 ] [/ norm2 rate2 ]]] set weighted_mean3 [/ [+ $norm1 $norm2 ] [+ [/ $norm1 $rate1 ] [/ $norm2 $rate2 ]]] same result as ( delta quantity) / (delta time) set weighted_mean4 [ expr { ( $norm2-$norm1 )/(( $norm1/$rate1 )+( $norm2/$rate2 )) } ] ====== ---- [gold] This page is copyrighted under the TCL/TK license terms, [http://tcl.tk/software/tcltk/license.html%|%this license]. **Comments Section** <> Please place any comments here, Thanks. <> Numerical Analysis | Toys | Calculator | Mathematics| Example| Toys and Games | Games | Application | GUI ---- <> Development | Concept| Algorithm | Statistics.