matlab編程與工程應(yīng)用(第二版)習(xí)題解答(全)(編輯修改稿)
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【文章內(nèi)容簡(jiǎn)介】 9。There were %d quarters in the file 39。,n)。n = 1 : 1 : n。costs = costssales(:,1)。sales = costssales(:,1)。plot(n,costs,39。ko39。)。hold on plot(n,sales,39。b*39。)。legend(39。COSTS39。,39。SALES39。)。xlabel(39。COST39。)。ylabel(39。SALE39。)。title(39。COSTSALE39。)。costssales = costssales39。costssales = flipud(costssales)。save costssales ascii。 第三章 選擇語(yǔ)句2. if (input(39。please Enter a x :\n39。,39。s39。) ~= 39。x39。) disp(39。sorry the char not x39。)。end3. function y = Test3(x)if (x == 12) y = 1。else y = x + 1。end。4. disp(39。The program will calculate the volume of a pyramid39。)。a = input(39。Enter the length of the base :39。)。c = input(39。Is that i or c?39。,39。s39。)。if( c == 39。c39。) a = a/。end。b = input(39。Enter the width of the base :39。,39。s39。)。c = input(39。Is that i or c?39。)。if( c == 39。c39。) b = b/。end。d = input(39。Enter the length of the base :39。,39。s39。)。c = input(39。Is that i or c?39。)。if( c == 39。c39。) d = d/。end。fprintf(39。The Volume of the Pyramid is %.3f cubic inches.39。,a * b * d / 3)。5. if(input(39。Are you an engineer?(Y/N)39。,39。s39。) == 39。Y39。) disp(39。You are the best!39。)。else disp(39。oh~ soga39。)。end。6. Fenzi = input(39。Please input enter the FENZI: 39。)。Fenmu = input(39。Please input enter the FENMU: 39。)。if(Fenmu == 0) disp(39。Sorry The Fenmu can not be zero!39。)。else fprintf(39。The result is %.2f.\n39。,Fenzi/Fenmu)。end。7. function Result = Test3_Func( a,b )%TEST3_FUNC Summary of this function goes here% Detailed explanation goes hereResult = sqrt(1 b^2/a)。EndFunction:a = input(39。Please Enter the a : 39。)。b = input(39。Please Enter the b : 39。)。if (a == 0) disp(39。Error 000139。)。else fprintf(39。The Result is %.2f \n39。,Test3_Func(a,b))。end。8. a = input(39。Please Enter the Shousuo : 39。)。b = input(39。Please Enter the Shuzhang : 39。)。if (a120 amp。amp。 b80) disp(39。you are the best choice !39。)。else disp(39。Sorry you can not do this!39。)。end。9. A1 = input(39。Enter the First Area: 39。)。A2 = input(39。Enter the Second Area: 39。)。if(A1 A2) disp(39。UP!39。)。elseif (A1 A2) disp(39。Down!39。)。 else disp(39。Keep!39。)。 en10. a = input(39。Enter the PH number : 39。)。if (a 7)disp(39。Suan39。)。elseif (a 7) disp(39。Jian39。)。else disp(39。Zhong39。)。end。11. function Result = Test3_Func( a,b )%TEST3_FUNC Summary of this function goes here% Detailed explanation goes hereif (a b) Result = a : 1 : b。else Result = a : 1 : b。end12. function Result = Test3_Func( x )%TEST3_FUNC Summary of this function goes here% Detailed explanation goes here[a b] = size(x)。if ((a ~= 1 amp。amp。 b ~= 1) || (a == 1 amp。amp。 b == 1)) Result = x。elseif(a == 1) Result = fliplr(x)。else Result = flipud(x)。end13. letter = input(39。Enter your answer :39。,39。s39。)。if (letter == 39。Y39。 || letter == 39。y39。) disp(39。OK,continuing39。)。elseif(letter == 39。N39。 || letter == 39。n39。) disp(39。OK,halting39。)。else disp(39。Error39。)。end14.switch letter case {39。Y39。 39。y39。} disp(39。OK,contining39。) case {39。N39。 39。n39。} disp(39。OK,halting39。) otherwise disp(39。Error39。)end15. Mahe = input(39。Enter the Speed of Plan : 39。)/input(39。Enter the Speed of Voice: 39。)。if(Mahe 1) disp(39。supersonic speed39。)。elseif(Mahe 1) disp(39。subsonic speed39。)。else disp(39。transonic speed39。)。end。16. X = input(39。Enter the temp in degrees C : \n39。)。switch (input(39。Do you want F or K?39。,39。s39。)) case 39。F39。 fprintf(39。The temp in degrees F is %.1f39。,(9/5)*X + 32)。 case 39。K39。 fprintf(39。The temp in degrees K is %.1f39。,X + )。 otherwise disp(39。Enter Error!39。)。end。17. %function y = Test3(x)X = randi(100)。if rem(X,2) == 0 fprintf(39。%d 202。199。197。188。202。253。\n39。,X)。else fprintf(39。%d 202。199。198。230。202。253。\n39。,X)。 end18. function y = Test3(x)switch rem(x,4) case 0 y = true。 otherwise y =false。end。19. function y = Test3(innum)if innum == int32(innum) y = true。else y =false。end。20. function y = Test3(a,b,c)if a^2 == b^2 + c^2 y = true。else y =false。end。21. Re = input(3
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