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. The Casio FX-991EX sets a new standard with high-resolution LCD screen technology and more features and functions. Casio's most advanced Scientific Calculator, allowed in every UK exam where a scientific calculator can be used features a 'Natural Textbook Display' (Natural-V.P.A.M.) to show mathematical expressions like fractions and roots as they appear in maths textbooks which significantly increases comprehension as the results much easier to understand. The advanced functions include spreadsheet, table tools and advanced statistics. This model comes supplied with a protective hard case cover.Recommended and approved for GCSE, AS & A level, Core Maths, National and Higher grades.Packed with 552 functions including; Spreadsheets, Tables, QR code generation, Equation Solvers and much more.High-resolution LCD with VPAM 'Natural Textbook Display', showing fractions, square roots and other numerical expressions in the same way as they appear in textbooks.
Displays mathematical functions in a more visual and natural way. Special Features.
Spreadsheet. Equation Solver. Online visualization service via QR code.
Utilities. Base-n Calculations. 47 Scientific Constants. 40 Metric Conversions. 9 Variable Memories. Basic Functions.
Trigonometric and Inverse Trigonometric Functions. Exponential / Logarithmic. Fraction Calculations.
Algebra. Equation Calculations. Inequalities. Table Function. Matrix / Vector Calculations. Complex Number Calculations.
Prime Factorization. Probability. Permutation and Combination.
Statistics. Statistical Calculations. Distribution. While every care has been taken to ensure product information is correct, food products are constantly being reformulated, so ingredients, nutrition content, dietary and allergens may change.
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In solving engineering problems, one may not have the luxury of time. Most situations demand immediate results.
The price of falling behind schedule is costly and demeaning to one's reputation. Therefore, every bit of precaution must be taken to expedite calculations. The following introduces methods to tackle these problems speedily using a Casio calculator FX-991ES and FX-991EX.
►For algebraic problems where you need to find the exact value of a dependent or independent variable, just use the CALC or ES Mode 5 functions or EX MENU A functions. ►For definite differentiation and integration problems, simply use the d/dx and integral operators in the COMP mode.
Casio Fx 991ex Calculator
►For models that follow the differential equation: dP/dx=kt and models that follow a geometric function(i.e. ES -Simply go to Mode 3 (STAT) (5) e^x -For geometric functions Mode 3 (STAT) 6 A.B^x -(Why? Because the solution to the D.E. DP/dx=kt is an exponential function e^x. When we know the boundary conditions, we can input them for regression.) EX -Simply go to MENU 6 (STAT) (DOWN) (1) a.e^(b.x) -For geometric functions MENU 6 (STAT) (DOWN) (2) a.b^x -(Why? Because the solution to the D.E.
DP/dx=kt is an exponential function e^x. When we know the boundary conditions, we can input them for regression.) Examples: I arrive at an urban area where I plan to set up cell sites that could satisfy the locale's needs for 10 years.
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The population is 200. 2 years later, the population has increased to 1000. I assume a basic exponential model. How many cells should I plan for if I alot a Grade of Service of 0.02 corresponding to 1000 people per cell? ES Mode 3 5 X Y 0 200 2 1000 10 - Shift - 1 - 5 - 5 = 6 = 625 Therefore, I have to plan for 625 cells. EX MENU (6) (DOWN) (1) X Y 0 200 2 1000 10 - OPTN (DOWN) (4) (5) = 6 = 625 Therefore, I have to plan for 625 cells.
►For models following an arithmetic progression or linear relationship, ES -Simply go to Mode 3 (STAT) 2 A+B.X -(Again, this is because the nature of arithmetic progression is repeated addition. With the STAT function, we can do regression given sufficient data.) EX -Simply go to MENU (6) (STAT) (2) a+b.x -(Again, this is because the nature of arithmetic progression is repeated addition. With the STAT function, we can do regression given sufficient data.).
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Casio Fx 991ex Calculator Manual
I have a 105 kohm resistor at 30 degrees Celsius in an airconditioned room. Its temperature increases to 47 degrees Celsius after I take it out on a hot summers day, thereby increasing its resistance by 700 ohms (positive temperature coefficient). What would be its resistance when I take it to the living room where there is no airconditioning at 37 degrees Celsius? ES Mode 3 2 X Y 30 105000 37 - Shift - 1 - 5 - 5 = 105288 ohms or 105.3 kohms. EX MENU (6) (2) X Y 30 105000 37 - (OPTN) (DOWN) (4) (5) = 105288 ohms or 105.3 kohms. ►For approximations and functions where the limit is to be taken, the TABLE function can be used. ►For finding the angle between 2 vectors, we can use ES Mode 8 (VECTOR) or EX MENU (5) (VECTOR).
This is a bit conspicuous but is worth mentioning here: In our vector analysis course we remember that: dotproduct(A,B)=abs(A).abs(B)cos(theta) therefore: theta=arccos(dotproduct(A,B)/(abs(A).abs(B))); We simply just have to provide the values for vectors A and B. ►For Laplace Transforms, we can solve for a specific value using the integral function of the fx-991ES/EX. Example: Find the Laplace Transform of 3.cos(t).t^4. ( remember to put the calc. In radian mode) the answer: (360.s)/(s^2 + 1)^3 - (1440.s^3)/(s^2 + 1)^4 + (1152.s^5)/(s^2 + 1)^5 Let s=2.5 (true answer: -0.1657) -integrate from 0.1 to 5 with the function multiplied by exp(-(2.5)x) = -0.168 (close enough) Note: There is a Matlab function that will get the Laplace of any function.
![Fx 991ex Calculator Fx 991ex Calculator](/uploads/1/2/3/9/123950694/131595010.jpg)
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Declare variables as string first. syms t Find the Laplace. laplace(3.cos(t).t^4) ►For Fourier Transforms, we can solve for a specific value using Simpson's 1/3 rule ( since we can't use the integral function of the calculator) and by using the CMPLX mode.
Description The CASIO FX-991EX Scientific calculator is recommended for A & AS level, plus GCSE & Core Maths, National & Higher Grade. It features 552 functions and an easy menu function. Basic functions include Trigonometric and Inverse Trigonometric functions, Exponential/Logarithmic, Fraction Calculations, Algebra functions, Probability and Statistics. There are 47 Scientific Constants, 40 Metric Conversions and 9 variable memories. Special features include Spreadsheet, Numeric Equation solvers and an Online visualisation service via QR code.
The FX-991EX features high resolution LC, metric conversions, binominal and normal distribution and an equation solver. Battery and solar powered, this calculator comes with a 3 year guarante and a protective hard case cover.
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Our Official bKash Merchant Payment Number: 8. Thank you for Trusting us! Featuring the latest Casio Non-programmable scientific calculator fx 991ex-plus which features high-resolution display for more data on display, Online QR code visualization to help you do more via Graphical representation, numerical representation or taking help to do more. Metallic finish keys with colorful coding for better functionality as well a faster processor and twice the memory size makes sure of speedy calculations. Casio classwiz fx 991 ex non-programmable scientific calculator is made for you.
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Business and Financial Mathematics Tutorials- My Casio Scientific Calculator Tutorials- I'm Sujoy and today I'll tell you 32 cool features of Casio fx-991EX Classwiz Scientific Calculator. Topics Explained- 1. Fractions Calculations on Casio fx-991EX Classwiz a. Using fraction template b. Fractions to decimal conversion c. Using Mixed fractions template d. Compound fractions to mixed fractions conversion 2.
Expression Calculation on Casio fx-991EX Classwiz 3. Trigonometric calculations (Sin, Cos, Tan, Sin^-1, Cos^-1, Tan^-1) 4. Percentage Calculations on Casio fx-991EX Classwiz 5. Sexagesimal (Hour,Minute,Second) Calculation on Casio fx-991EX Classwiz 6. CALC Feature on Casio fx-991EX Classwiz 7. SOLVE Feature on Casio fx-991EX Classwiz 8.
Random Number Generator (Ran# and RanInt#) 9. Integration on Casio fx-991EX Classwiz 10. Differentiation and Derivative on Casio fx-991EX Classwiz 11. Factorial Calculations on Casio fx-991EX Classwiz 12. Permutation Calculations on Casio fx-991EX Classwiz 13. Combination Calculations on Casio fx-991EX Classwiz 14. Unit Converter on Casio fx-991EX Classwiz 15.
Scientific Constants on Casio fx-991EX Classwiz 16. Square Root, Cube Root Calculations on Casio fx-991EX Classwiz 17. N-th Root Calculations on Casio fx-991EX Classwiz 18. Using Variables on Casio fx-991EX Classwiz 19. Writing names on on Casio fx-991EX Classwiz 20. Multi-statement calculations on Casio fx-991EX Classwiz e. Generate Fibonacci Series on calculator 21.
Adjusting display contrast on Casio fx-991EX Classwiz 22. Polar to Rectangular conversion on Casio fx-991EX Classwiz 23. Rectangular to Polar conversion on Casio fx-991EX Classwiz 24. Summation - Finding sums of squares on Casio fx-991EX Classwiz 25.
Natural logarithm ln and e calculation on Casio fx-991EX Classwiz 26. Absolute value calculations on on Casio fx-991EX Classwiz 27. Answer variable - Arithmetic series, Geometric series, and Power series on Casio fx-991EX Classwiz 28. M+ button usage on Casio fx-991EX Classwiz 29.
How to Reset, Clear all memory of Casio fx-991EX Classwiz Calculator 30. Reciprocal and inverse of number on Casio fx-991EX Classwiz 31. Log-base N calculations on Casio fx-991EX Classwiz 32.
Antilog calculations on Casio fx-991EX Classwiz That's it for now! How is the video? I've uploaded videos on - 1) Statistics, 2) Numerical Methods, 3) Calculator Tricks for Exams 4) Business & Financial Mathematics, 5) Operations Research(OR), 6) Computer Science & Engineering(CSE), 7) Electrical Engineering, 8) Life Hacks! 9) CCNA Networking, 10) Android Application Reviews, 11) India Travel & Tourism, 12) Street Foods, and many other topics. Plz visit my channel to watch them. Join me at my YouTube Channel- Join me at my Blog.