Casio FXCP400 Fix, Sci, sin, sin, Normal, Normal, 50 ÷ 4, 2.5E +, 2.5E +, 2.5E +, 1.25E +, 100 ÷ 6, 1.67E +, 1 ÷ 600, 1.67E –, 2.50E +, sin (45), sin (45), sin (45)

uNumber of Decimal Places, Number of Significant Digits, Normal Display Settings

The [Number Format] settings on the Basic Format dialog box specify the number of decimal places, the number of significant digits, and the normal display setting for Main application Decimal mode calculation results. The following shows how calculation results appear under each setting.

Expression	Normal 1	Normal 2	Fix 3	Sci 3
50 ÷ 4 = 12.5	12.5	12.5	12.500	1.25E + 1
100 ÷ 6 = 16.6666666...	16.66666667	16.66666667	16.667	1.67E + 1
1 ÷ 600 = 0.00166666...	1.666666667E –3	0.00166666666	0.002	1.67E – 3
1011 ÷ 4 = 2.5E + 10	2.5E + 10	2.5E + 10	2.5E + 10	2.50E + 10

The allowable range for the number of decimal places is Fix 0 to Fix 9, and the range for the number of significant digits is Sci 0 to Sci 9. For details about the [Number Format] settings, see “Basic Format Dialog Box” on page 34.

Complex Mode and Real Mode

The Complex mode is for complex number calculations, while the Real mode is limited to calculations within the range of real numbers. Performing a calculation in the Real mode that produces a result that is outside the range of real numbers causes an error (Non-Real in Calc).

0207 (Complex mode and Real mode calculation results)

Tip

•You can select “ i ” or “ j ” for the imaginary unit. See “To specify the complex number imaginary unit” on page 247.

•If the expression includes ￿(r,), calculation results should be ￿(r,) form.

Radian Mode, Degree Mode and Grad Mode

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

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

Expression	Radian Mode	Degree Mode			Grad Mode
	'￿		π			π
sin (π/4)	￿	sin (		)	sin (		)
			4			4
sin (45)	sin (45)	'￿			sin (45)
			￿
sin (50)	sin (50)	sin (50)			'￿
						￿

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).

Assistant 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 0208 (see the “expand” example).

0208 (Assistant mode and Algebra mode calculation results)

Important!

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

Chapter 2: Main Application 45