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¡La mejor calculadora para estudiantes, Casio no decepciona!
Pattern Name: Calculator
Como estudiante de preparatoria, necesitaba una calculadora confiable y versátil para mis clases de matemáticas y ciencias. Después de investigar y leer muchas reseñas, decidí comprar la Casio FX-991 Classwiz, ¡y estoy muy contento con mi elección! Esta calculadora es increíblemente potente y cuenta
con una amplia gama de funciones que hacen que el trabajo matemático sea mucho más fácil. Desde cálculos básicos hasta ecuaciones complejas, esta calculadora lo hace todo. Además, su pantalla nítida y clara me permite visualizar los resultados sin esfuerzo, incluso en condiciones de poca luz. Lo mejor de todo es que la calculadora llegó a mis manos en tan solo 5 días, aquí en Colombia. ¡El servicio de entrega fue rápido y eficiente! Como fan de Casio, esta calculadora no me ha decepcionado en absoluto. Casio siempre ha sido una marca de confianza para mí, y la FX-991 Classwiz no es una excepción. La calidad y durabilidad son evidentes en cada aspecto de esta calculadora. Recomendaría la Casio FX-991 Classwiz a todos los estudiantes que necesiten una herramienta confiable y de calidad para sus estudios. No te arrepentirás de esta compra. ¡Gracias, Casio, por proporcionar productos excelentes una vez más!
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Reviewed in the United States on June 14, 2023 by Kirito Fritz
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Lightweight. Good build quality. Lots of functions.
Pattern Name: Calculator
I've used it for my Fundamentals of Engineering (FE) exam and it's great. Always used Casio calculators all my life, and every single one has been great. This one is no exception. I've used the older 991EX model too, and this one improves upon even that.
Reviewed in the United States on August 16, 2023 by Tabish Zaidi
Pattern Name: Calculator
tiene funciones buenas y muy útiles para algebra y mas areas
Reviewed in the United States on August 30, 2023 by Daniel Esteban Barrera Espinosa
Pattern Name: Calculator
Muy buen producto.
Reviewed in the United States on August 27, 2023 by Omar Guevara
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Arrived quickly, many functions, versatile non graphing calculator.
Pattern Name: Calculator
Arrived earlier than expected, although the packaging had some marking and wear on it. Calculator had the functions I needed for grade 12 calculus class and was easy to use.
Reviewed in the United States on August 16, 2023 by A A
Pattern Name: Calculator
Con un precio excelente, funciona como se esperaba
Reviewed in the United States on August 20, 2023 by Yasiris Santamaría
Pattern Name: Calculator
Nice Calculator with lots of fuction
Reviewed in the United States on August 2, 2023 by LO Ka Hung
Pattern Name: Calculator
Kept seeing it at uni. I was feeling left out but at least I got it for a better price than everyone else. It has a lot of hidden functions so don't forget to go to YouTube before the big test, to find out how to save yourself minutes of calculating.
Reviewed in the United States on June 27, 2023 by Amazon Customer
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I wear my sunglasses at night
Pattern Name: Calculator
You would think the high resolution screen would be the cat's meow. But it's not. For normal math calculations, the character font Casio has chosen is too small so all the numbers are too small. If you're into matrices, maybe the high resolution pays; otherwise it's a minus. But that's not the bigges
t problem. The biggest problem is that the screen has a dark filter over it. It's like trying to use a calculator while wearing sunglasses. You have to look at these small, dark numbers against a dark background. It makes me want to reach for any other calculator. Also it would have been nice if Casio hadn't used medium blue on a black case to identify some of the button functions. On the plus side, this calculator is fast! I never realized how slow my TI-30XIIB was to cough up answers until I bought this screamer. If I were still taking math exams under bright lights, I'd seriously consider using the Classwiz for how fast it is.
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Reviewed in the United States on March 24, 2023 by Monica W.
Pattern Name: Calculator
Calculator for school. It's good
Reviewed in the United States on July 18, 2023 by Farid
Pattern Name: Calculator
Very good calculator.
Reviewed in the United States on July 11, 2023 by Aristides Diaz
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It's my everyday companion!!
Pattern Name: Calculator
I am a structural engineer, and needless to say I need my calculator everyday. It's just convenient to punch in the numbers and get what I need. This dependable piece of equipment has helped me through numerous exams, and days of doing my work. It has all the features I need, the SOLVE function is qu
ick, polynomial feature accepts up to 4th degree, and simultaneous equations are also solvable for 4 unknowns. I am happy with the purchase. It's easy to use, and one of those things which you buy and forget, because it just works everyday.
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Reviewed in the United States on May 11, 2023 by Ajinkya
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Great cheap calculator with a ton of functions
Pattern Name: Calculator
The build quality feels cheap & a bit flimsy and the buttons are okay, but what can I expect from a calculator with hundreds of functions that costs less than $20. I'm not a fan of the slip cover design and will probably leave it in the open position at all times. I bought it to augment my trust old
HP 20S (built like a tank compared). This calc has all the functions I wanted and more (but lacking programmability)... it will probably will take me months to figure them all out. I love the textbook display modes it can do. All-in-all, I'm happy with it and hope it lasts half as long as my still-going HP 20S is.
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Reviewed in the United States on February 15, 2023 by CTS
Pattern Name: Calculator
La calculadora tiene muchas funciones disponibles, solo difiere de la versión más nueva, desde el punto de vista de funciones, que no tiene función para arrojar una moneda, pero la percepción de calidad es mejor que la del último modelo. Lo que encuentro un tanto engorroso son las operaciones con mem
oria, sumar cantidades en la misma, es simple, para restar, ya requiere oprimir 2 teclas a igual que para recuperar el valor almacenado y para borrar es necesario entrar a un menú, seleccionar la opción y confirmarla. A mi juicio, muchos pasos.
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Reviewed in the United States on April 5, 2023 by sispem
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Losing your stack on timeout kills the whole package.
Pattern Name: Calculator
#1 Pro: The best thing about this calculator to me, by far, is how it minimizes inputs for evaluating formulas. Example: AX^2 + BX + C -> Calc Key Will open a prompt asking for A, B, C, X and will even accept expressions and evaluate them before putting them into the equation. Feels several times fas
ter than the old way of storing values into A, B, C, X and then constructing the formula you want to evaluate. Also makes it VERY FAST to guess roots of a polynomial or solutions for linear combinations of sine and cosine. #2 Pro: Pressing left at the beginning of a line jumps to the end. Pressing right at the end jumps to the front. It seems like a small thing but it cuts down on keypresses compared to having to press Shift -> L/R. #3 Pro: Processor speed is nice. Definitely look into this one if you're doing a lot of definitive integrals. #1 Con: Lose your stack anytime the calculator goes into sleep mode. Lose your stack if you switch modes. Lose your stack if you power off. The only reason I can imagine this is done is due to testing board standards in countries where this calculator is the top dog because it is HORRIBLE. Enough for it to feel like the first mode is the only thing that exists. Enough for me to hesitate using it for an important test. #2 Con: Constants are only referred to by their symbol. Other calculators will print out their name while you are selecting them. Huge liability if you're the forgetful type and a nasty surprise on a test if you learned from a teacher or textbook that used a different symbol. #3 Con: No RREF for matrix mode for some reason? You can use the system solver for up to 4x4s, but it's still very odd. Couple that with memory loss due to switching modes and I don't see a reason to pull this out over other calculators when dealing with Linear Algebra.
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Reviewed in the United States on March 29, 2022 by Wr
