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Einstine calculator Hi I've learning to program for about the last 2 years. Any way i found a ZIP disk yesterday and on it was a program I wrote about a year ago, tell me what you think.
Code:#include <stdio.h> #include <stdlib.h> #include <math.h> /* Author :A.Mac Hugh Date:-21-10-2002 Version:*/ void engery (); /* function prototype*/ void lenght (); /* function prototype*/ void time (); /* function prototype*/ int exit(); /*fuction protoyype*/ void momentum (); /* function prototype*/ void mass (); /* function prototype*/ void Kenetic_Eng (); /* function prototype*/ void st(); int menu(); int exit(); #define c 3E8 int main() { void menu (); /* function prototype*/ printf("\n\tWelcome to Machsofts Einstine calculator.\n\tThis program will \n\tcalculate all of the equatios for Einstines Theroy of Special General Relativity."); printf("\n\tThis is copyright Machsoft INC 2002"); printf("\n\tVersion 1.0 Beta\n\n\n");/* intoduction*/ exit(); menu (); /*fuction beging run*/ } int menu (){ int nums; /* ask user for therir option*/ printf("\n\n\n"); printf("\n\n\nSlect from 1-0 and hit enter after choice\n\n"); printf("\t\tTo calculate Engery press \t\t\t(1)\n"); printf("\t\tTo calculate Lenght contraction press \t\t(2)\n"); printf("\t\tTo calculate Time dialation press \t\t(3)\n"); printf("\t\tTo calculate Relativistic Momentum \t\t(4)\n"); printf("\t\tTo calculate Relarive Mass press \t\t(5)\n"); printf("\t\tTo calculate Kenetic Engery \t\t\t(6)\n"); printf("\n\t\t\tTo exit press (0) then enter\n"); scanf("%d",& nums);/*get option*/ /*Switich statment for chosesing option*/ switch (nums){ case 0: exit(); printf("\n\n)"); break; case 1 : engery(); printf("\n\n)"); break; case 2: lenght(); printf("\n\n)"); break; case 3: time(); printf("\n\n)"); break; case 4: momentum(); printf("\n\n)"); break; case 5: mass(); printf("\n\n)"); break; case 6: Kenetic_Eng(); printf("\n\n)"); break; case 1701: st(); printf("\n\n)"); break; default:/*invalid option*/ printf("\aInvaiid Option \n\nEnter choice again \n\n"); menu(); printf("\n\n\n\n"); break; } return 0; } /*fuction to exit program*/ int exit(){ system("PAUSE"); return 0; } /* Fuction name :engery Fuction varibles( All floats) : e engery m mass Purpose: Ask user to enter in the mass.Works out the engery . Prints out engery in joules*/ void engery (){ float e; float m; printf("This works out Mister Einstein most famous equation E=MC squared\nE=Engery\nM=Mass\n C = The speed of light"); printf(" Please enter in the values for the mass (m)\nPress enter\n" );/*ask user enter in values*/ scanf("%f",&m);/* get values*/ e=c*c*m; printf("\nThe Engery is %e joules \n\t",e);/* prints out engery*/ exit(); /*exit fuction running*/ menu(); } /* Fuction name :lenght Fuction varibles( All doubles) : l_0 orignal lenght l_1 lenght v velocity Purpose: Ask user to enter in the orignal lenght and velocity.Works out lenght. Prints out lenght*/ void lenght (){ float l_0 ; float l_1; float v; printf("This works Lenght contraction equation "); printf(" Please enter in the values for \nthe orgnal lenght and the velocity \nPress enter after each value \n");/*ask user enter in values*/ scanf("%f%f",&l_0,&v);/* get values*/ l_1=l_0*sqrt(1-(v*v)/(c*c)); printf("\nThe lenght is %e meters\n\t",l_1);/* prints out lenght */ exit(); menu(); } /* Fuction name :time Fuction varibles( All floats) : t_0 time at rest t time v velocity Purpose: Ask user to enter in the time at rest.Works out works time. Prints out time*/ void time (){ float t ; float t_1; float v; printf("This works Time dialation equation "); printf(" Please enter in the values for\n the time at rest and the velocity.\nPressenter after each vaule \n");/*ask user enter in values*/ scanf("%f%f",&t_1,&v);/* get values*/ t=t_1/sqrt(1-(v*v)/(c*c)); printf("\n\n\n\n\n\n\nThe time is %e seconds\n\t\n",t);/* prints out time */ exit(); menu(); } /* Fuction name :momentum Fuction varibles( All floats) : m_0 orignal mass p momentum v velocity Purpose: Ask user to enter in the ogrignal mass and velocity.Works out works momentum. Prints out momentum*/ void momentum (){ float p ; float m_0; float v; printf("This works equation Relativistic Momentum"); printf(" Please enter in the values \nfor the orignal mass and the velocity \nPress enter after each value\n");/*ask user enter in values*/ scanf("%f%f",&m_0,&v);/* get values*/ p=(m_0)*(v)/sqrt(1-(v*v)/(c*c)); printf("\nThe momentum is %e\n\n\n",p);/* prints out momentum*/ exit(); menu(); } /* Fuction name :Kenetic_Eng Fuction varibles( All floats) : m_0 ogrignal mas v velocity ke kentic_Eng Purpose: Ask user to entert in the ogrignal mass and velocity.Works out works kentic engery. Prints out Kentic engery*/ void Kenetic_Eng (){ float ke ; float m_0; float v; printf("This works Kenetic Engery equation"); printf(" Please enter in the values for \nthe orignal mass and the velocity \n Press enter after each value\n");/*ask user enter in values*/ scanf("%f%f",&m_0,&v);/* get values*/ ke=(m_0)*(c)*sqrt(1-(v*v)/(c*c)); printf("\nThe Kenetic Engery is %e\n\n\n",ke);/* prints out KE*/ exit(); menu(); } /* Fuction name :mass Fuction varibles( floats) : m_0 ogrignal mas v velocity m kentic_Eng Purpose: Ask user to entert in the ogrignal mass and velocity.Works out works mass. Prints out mass*/ void mass (){ float m; float m_0; float v; printf("This works Relarive Mass equation "); printf(" Please enter in the values \nfor the orignal mass and the velocity \nPress enter after each value\n");/*ask user enter in values*/ scanf("%f%f",&m_0,&v);/* get values*/ m=(m_0)/sqrt(1-(v*v)/(c*c)); printf("\nThe momentum is %e \n\n\n",m);/* prints out mass*/ exit(); menu(); } /*Ester Egg fuction*/ void st(){ printf( "\n\nUSS ENTERPRISE NCC-1701-E\n\n\n LAUNCHED IN 2372\n\n\nCO CAPTIAN JEAN -LUC PICARD\n\n\n XO CRMD.WILLIAM T RIKER\n\n\n 2ND XO LT.CRMD DATA\n\n\n"); exit(); /*prints out ester egg.What do you think???????*/ menu(); }
