Formulas and Functions

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- DATE
- DATEDIF
- DATEVALUE
- DAY
- DAYNAME
- DAYS360
- EDATE
- EOMONTH
- HOUR
- ISOWEEKNUM
- MINUTE
- MONTH
- MONTHNAME
- NETWORKDAYS
- NOW
- SECOND
- TIME
- TIMEVALUE
- TODAY
- WEEKDAY
- WEEKNUM
- WORKDAY
- YEAR
- YEARFRAC
- BASETONUM
- BESSELJ
- BESSELY
- BIN2DEC
- BIN2HEX
- BIN2OCT
- BITAND
- BITOR
- BITXOR
- BITLSHIFT
- BITRSHIFT
- CONVERT
- DEC2BIN
- DEC2HEX
- DEC2OCT
- DELTA
- ERF
- ERFC
- GESTEP
- HEX2BIN
- HEX2DEC
- HEX2OCT
- NUMTOBASE
- OCT2BIN
- OCT2DEC
- OCT2HEX
- ACCRINT
- ACCRINTM
- BONDDURATION
- BONDMDURATION
- COUPDAYBS
- COUPDAYS
- COUPDAYSNC
- COUPNUM
- CUMIPMT
- CUMPRINC
- CURRENCY
- CURRENCYCODE
- CURRENCYCONVERT
- CURRENCYH
- DB
- DDB
- DISC
- EFFECT
- FV
- INTRATE
- IPMT
- IRR
- ISPMT
- MIRR
- NOMINAL
- NPER
- NPV
- PMT
- PPMT
- PRICE
- PRICEDISC
- PRICEMAT
- PV
- RATE
- RECEIVED
- SLN
- STOCK
- STOCKH
- SYD
- VDB
- XIRR
- XNPV
- YIELD
- YIELDDISC
- YIELDMAT
- AND
- BYCOL
- BYROW
- FALSE
- IF
- IFERROR
- IFS
- ISBLANK
- ISDATE
- ISERROR
- ISEVEN
- ISNUMBER
- ISNUMBERORDATE
- ISODD
- ISOMITTED
- ISTEXT
- LAMBDA
- LAMBDA.APPLY
- LET
- MAKEARRAY
- MAP
- NOT
- OR
- REDUCE
- SCAN
- SWITCH
- TRUE
- ABS
- CEILING
- COMBIN
- EVEN
- EXP
- FACT
- FACTDOUBLE
- FLOOR
- GCD
- INT
- LCM
- LN
- LOG
- LOG10
- MDETERM
- MINVERSE
- MMULT
- MOD
- MROUND
- MULTINOMIAL
- MUNIT
- ODD
- PI
- POLYNOMIAL
- POWER
- PRODUCT
- QUOTIENT
- RAND
- RANDARRAY
- RANDBETWEEN
- ROMAN
- ROUND
- ROUNDDOWN
- ROUNDUP
- SEQUENCE
- SERIESSUM
- SIGN
- SQRT
- SQRTPI
- SUBTOTAL
- SUM
- SUMIF
- SUMIFS
- SUMPRODUCT
- SUMSQ
- SUMX2MY2
- SUMX2PY2
- SUMXMY2
- TRUNC
- ADDRESS
- AREAS
- CHOOSE
- CHOOSECOLS
- CHOOSEROWS
- COLUMN
- COLUMNS
- DROP
- EXPAND
- FILTER
- FORMULATEXT
- GETPIVOTDATA
- HLOOKUP
- HSTACK
- HYPERLINK
- INDEX
- INDIRECT
- INTERSECT.RANGES
- LOOKUP
- MATCH
- OFFSET
- REFERENCE.NAME
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- ROWS
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- SORTBY
- TAKE
- TOCOL
- TOROW
- TRANSPOSE
- UNION.RANGES
- UNIQUE
- VLOOKUP
- VSTACK
- WRAPCOLS
- WRAPROWS
- XLOOKUP
- XMATCH
- AVEDEV
- AVERAGE
- AVERAGEA
- AVERAGEIF
- AVERAGEIFS
- BETADIST
- BETAINV
- BINOMDIST
- CHIDIST
- CHIINV
- CHITEST
- CONFIDENCE
- CORREL
- COUNT
- COUNTA
- COUNTBLANK
- COUNTIF
- COUNTIFS
- COVAR
- CRITBINOM
- DEVSQ
- EXPONDIST
- FDIST
- FINV
- FORECAST
- FREQUENCY
- GAMMADIST
- GAMMAINV
- GAMMALN
- GEOMEAN
- HARMEAN
- INTERCEPT
- LARGE
- LINEST
- LOGINV
- LOGNORMDIST
- MAX
- MAXA
- MAXIFS
- MEDIAN
- MIN
- MINA
- MINIFS
- MODE
- NEGBINOMDIST
- NORMDIST
- NORMINV
- NORMSDIST
- NORMSINV
- PERCENTILE
- PERCENTRANK
- PERMUT
- POISSON
- PROB
- QUARTILE
- RANK
- SLOPE
- SMALL
- STANDARDIZE
- STDEV
- STDEVA
- STDEVP
- STDEVPA
- TDIST
- TINV
- TTEST
- VAR
- VARA
- VARP
- VARPA
- WEIBULL
- ZTEST
- ARRAYTOTEXT
- CHAR
- CLEAN
- CODE
- CONCAT
- CONCATENATE
- COUNTMATCHES
- DOLLAR
- EXACT
- FIND
- FIXED
- LEFT
- LEN
- LOWER
- MID
- PLAINTEXT
- PROPER
- REGEX
- REGEX.EXTRACT
- REPLACE
- REPT
- RIGHT
- SEARCH
- SUBSTITUTE
- T
- TEXTAFTER
- TEXTBEFORE
- TEXTBETWEEN
- TEXTJOIN
- TEXTSPLIT
- TRIM
- UPPER
- VALUE
- ACOS
- ACOSH
- ASIN
- ASINH
- ATAN
- ATAN2
- ATANH
- COS
- COSH
- DEGREES
- RADIANS
- SIN
- SINH
- TAN
- TANH
版权和商标

ACOS

ACOS 函数可返回数字的反余弦值。

ACOS(数字)

数字： 数字值。数字必须在范围 –1 到 1 内。

注释

ACOS 函数可计算余弦值并返回相应的角度。结果角度用弧度表示，范围在 0 到 π (pi) 之间。若要查看以度数而不是弧度表示的结果角度，可在 DEGREES 函数中绕排此函数，即 =DEGREES(ACOS(数字))。

示例

=ACOS(SQRT(2)/2) 将返回 0.785398163397448，约为 π/4。

=ACOS(0.54030230586814) 将返回 1。

=DEGREES(ACOS(.5)) 将返回 60（余弦值为 0.5 的角度的度数）。

另请参阅ACOSH COS COSH DEGREES

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