Casio 3.04 i +, IAssistant Mode and Algebra Mode, IRadian Mode, Degree Mode and Grad Mode, SExamples of Complex mode and Real mode calculation results, 3·i, sin, sin

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Basic Calculations

SExamples of Complex mode and Real mode calculation results

Expression	Complex Mode	Real Mode
solve (x3 – x2 + x – 1 = 0, x)	{x = –i, x = i, x = 1}	{x = 1}
i + 2i	3·i	ERROR: Non-Real in Calc

Tip

•You can select “ i ” or “ j ” for the imaginary unit. See “Specifying the Complex Number Imaginary Unit” on page 16-15-1.

IRadian Mode, Degree Mode and Grad Mode

You can specify radians, degrees or grads as the angle unit for display of trigonometric calculation results.

SExamples of Radian mode, Degree mode and Grad mode calculation results

Expression	Radian Mode	Degree Mode			Grad Mode
	2		Π			Π
sin (Π/4)		sin (		)	sin (		)
	2		4			4

2

sin (45)sin (45)sin (45) 2

sin (50)sin (50)sin (50)

2

2

Important!

Regardless of the currently selected angle unit setting, a calculation that includes an

imaginary number power exponent (such as: eΠi) is performed using radians as the angle unit (eΠi = −1).

IAssistant Mode and Algebra Mode

The Algebra mode automatically simplifies mathematical expressions produced by calculations. No simplification is performed in the Assistant mode. In the Assistant mode, you can view intermediate results as well, which allows you to see the steps that lead to a particular result as shown in the “expand” example below.

SExamples of Assistant mode and Algebra mode calculation results

Expression	Assistant Mode	Algebra Mode
x2 + 2x + 3x + 6	x2 + 2 · x + 3 · x + 6	x2 + 5 · x + 6
expand ((x+1)2)	x2 + 2 · x· 1 + 12	x2 + 2 · x + 1
x + 1 (When 1 is assigned to x)	x + 1	2

Important!

The Assistant mode is available in the Main application and eActivity application only.

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