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Rev	Author	Line No.	Line
2	-	1	`.TH FLOOR 2`
		2	`.SH NAME`
		3	`fabs, fmod, floor, ceil \- absolute value, remainder, floor, ceiling functions`
		4	`.SH SYNOPSIS`
		5	`.B #include <u.h>`
		6	`.br`
		7	`.B #include <libc.h>`
		8	`.PP`
		9	`.B`
		10	`double floor(double x)`
		11	`.PP`
		12	`.B`
		13	`double ceil(double x)`
		14	`.PP`
		15	`.B`
		16	`double fabs(double x)`
		17	`.PP`
		18	`.B`
		19	`double fmod(double x, double y)`
		20	`.SH DESCRIPTION`
		21	`.I Fabs`
		22	`returns the absolute value`
		23	`.RI \| \\|x\\| \|.`
		24	`.PP`
		25	`.I Floor`
		26	`returns the`
		27	`largest integer`
		28	`not greater than`
		29	`.IR x .`
		30	`.PP`
		31	`.I Ceil`
		32	`returns the`
		33	`smallest integer`
		34	`not less than`
		35	`.IR x .`
		36	`.PP`
		37	`.I Fmod`
		38	`returns`
		39	`.I x`
		40	`if`
		41	`.I y`
		42	`is zero, otherwise the number`
		43	`.I f`
		44	`with the same sign as`
		45	`.IR x ,`
		46	`such that`
		47	`.I "x = iy + f\\|"`
		48	`for some integer`
		49	`.IR i ,`
		50	`and`
		51	`.RI \| \\|f\\| \|`
		52	`<`
		53	`.RI \| \\|y\\| \|.`
		54	`.SH SOURCE`
		55	`.B /sys/src/libc/port`
		56	`.SH SEE ALSO`
		57	`.IR abs (2),`
		58	`.IR frexp (2)`

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