Texas Instruments voyage 200 User Manual - Page 805
DelType, DelVar, deSolve, contains an arbitrary constant of the form
![]() |
UPC - 033317193424
View all Texas Instruments voyage 200 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 805 highlights
DelType CATALOG DelType var_type Deletes all unlocked variables of the type specified by var_type. Note: Possible values for var_type are: ASM, DATA, EXPR, FUNC, GDB, LIST, MAT, PIC, PRGM, STR, TEXT, AppVar_type_name, All. Deltype "LIST" ¸ Done DelVar CATALOG DelVar var1[, var2] [, var3] ... Deletes the specified variables from memory. 2! a ¸ (a+2)^2 ¸ DelVar a ¸ (a+2)^2 ¸ 2 16 Done (a + 2)ñ deSolve() MATH/Calculus menu deSolve(1stOr2ndOrderOde, independentVar, dependentVar) ⇒ a general solution Returns an equation that explicitly or implicitly specifies a general solution to the 1st- or 2ndorder ordinary differential equation (ODE). In the ODE: • Use a prime symbol ( ' , press 2 È) to denote the 1st derivative of the dependent variable with respect to the independent variable. Note: To type a prime symbol ('), press 2 È. deSolve(y''+2y'+y=x^2,x,y) ¸ y=(@1øx+@2)øeë x+xñ ì 4øx+6 right(ans(1))! temp ¸ (@1øx+@2)øeë x+xñ ì 4øx+6 d(temp,x,2)+2ùd(temp,x)+tempìx^2 ¸ 0 DelVar temp ¸ Done • Use two prime symbols to denote the corresponding second derivative. The ' symbol is used for derivatives within deSolve() only. In other cases, use d( ) . The general solution of a 1st-order equation contains an arbitrary constant of the form @k, where k is an integer suffix from 1 through 255. The suffix resets to 1 when you use ClrHome or ƒ 8: Clear Home. The solution of a 2nd-order equation contains two such constants. Apply solve() to an implicit solution if you want to try to convert it to one or more equivalent explicit solutions. deSolve(y'=(cos(y))^2ù x,x,y) ¸ tan(y)= xñ 2 +@3 When comparing your results with textbook or solve(ans(1),y) ¸ manual solutions, be aware that different methods introduce arbitrary constants at different points in the calculation, which may produce ( ) y=tanê xñ +2ø@3 2 +@n1øp different general solutions. Note: To type an @ symbol, press: 2R ans(1)|@3=cì 1 and @n1=0 ¸ ( ) y=tanê xñ +2ø(cì 1) 2 deSolve(1stOrderOde and initialCondition, independentVar, dependentVar) ⇒ a particular solution Returns a particular solution that satisfies 1stOrderOde and initialCondition. This is usually sin(y)=(yù e^(x)+cos(y))y'! ode ¸ sin(y)=(exøy+cos(y))øy' deSolve(ode and y(0)=0,x,y)! soln ¸ Appendix A: Functions and Instructions 807
![](/manual_guide/products/texas-instruments-voyage-200-user-manual-bbbfbaa/805.png)