update formula functions test

calc_test.go

@@ -177,6 +177,7 @@ func TestCalcCellValue(t *testing.T) {
 		"=_xlfn.CSC(_xlfn.CSC(1))":    "1.077851840310882",
 		// _xlfn.CSCH
 		"=_xlfn.CSCH(-3.14159265358979)": "-0.086589537530047",
+		"=_xlfn.CSCH(_xlfn.CSCH(1))":     "1.044510103955183",
 		// _xlfn.DECIMAL
 		`=_xlfn.DECIMAL("1100",2)`:    "12",
 		`=_xlfn.DECIMAL("186A0",16)`:  "100000",
@@ -184,8 +185,9 @@ func TestCalcCellValue(t *testing.T) {
 		`=_xlfn.DECIMAL("70122",8)`:   "28754",
 		`=_xlfn.DECIMAL("0x70122",8)`: "28754",
 		// DEGREES
-		"=DEGREES(1)":   "57.29577951308232",
-		"=DEGREES(2.5)": "143.2394487827058",
+		"=DEGREES(1)":          "57.29577951308232",
+		"=DEGREES(2.5)":        "143.2394487827058",
+		"=DEGREES(DEGREES(1))": "3282.806350011744",
 		// EVEN
 		"=EVEN(23)":   "24",
 		"=EVEN(2.22)": "4",
@@ -193,47 +195,54 @@ func TestCalcCellValue(t *testing.T) {
 		"=EVEN(-0.3)": "-2",
 		"=EVEN(-11)":  "-12",
 		"=EVEN(-4)":   "-4",
+		"=EVEN((0))":  "0",
 		// EXP
-		"=EXP(100)": "2.6881171418161356E+43",
-		"=EXP(0.1)": "1.105170918075648",
-		"=EXP(0)":   "1",
-		"=EXP(-5)":  "0.006737946999085",
+		"=EXP(100)":    "2.6881171418161356E+43",
+		"=EXP(0.1)":    "1.105170918075648",
+		"=EXP(0)":      "1",
+		"=EXP(-5)":     "0.006737946999085",
+		"=EXP(EXP(0))": "2.718281828459045",
 		// FACT
-		"=FACT(3)":  "6",
-		"=FACT(6)":  "720",
-		"=FACT(10)": "3.6288E+06",
+		"=FACT(3)":       "6",
+		"=FACT(6)":       "720",
+		"=FACT(10)":      "3.6288E+06",
+		"=FACT(FACT(3))": "720",
 		// FACTDOUBLE
-		"=FACTDOUBLE(5)":  "15",
-		"=FACTDOUBLE(8)":  "384",
-		"=FACTDOUBLE(13)": "135135",
+		"=FACTDOUBLE(5)":             "15",
+		"=FACTDOUBLE(8)":             "384",
+		"=FACTDOUBLE(13)":            "135135",
+		"=FACTDOUBLE(FACTDOUBLE(1))": "1",
 		// FLOOR
-		"=FLOOR(26.75,0.1)":   "26.700000000000003",
-		"=FLOOR(26.75,0.5)":   "26.5",
-		"=FLOOR(26.75,1)":     "26",
-		"=FLOOR(26.75,10)":    "20",
-		"=FLOOR(26.75,20)":    "20",
-		"=FLOOR(-26.75,-0.1)": "-26.700000000000003",
-		"=FLOOR(-26.75,-1)":   "-26",
-		"=FLOOR(-26.75,-5)":   "-25",
+		"=FLOOR(26.75,0.1)":        "26.700000000000003",
+		"=FLOOR(26.75,0.5)":        "26.5",
+		"=FLOOR(26.75,1)":          "26",
+		"=FLOOR(26.75,10)":         "20",
+		"=FLOOR(26.75,20)":         "20",
+		"=FLOOR(-26.75,-0.1)":      "-26.700000000000003",
+		"=FLOOR(-26.75,-1)":        "-26",
+		"=FLOOR(-26.75,-5)":        "-25",
+		"=FLOOR(FLOOR(26.75,1),1)": "26",
 		// _xlfn.FLOOR.MATH
-		"=_xlfn.FLOOR.MATH(58.55)":       "58",
-		"=_xlfn.FLOOR.MATH(58.55,0.1)":   "58.5",
-		"=_xlfn.FLOOR.MATH(58.55,5)":     "55",
-		"=_xlfn.FLOOR.MATH(58.55,1,1)":   "58",
-		"=_xlfn.FLOOR.MATH(-58.55,1)":    "-59",
-		"=_xlfn.FLOOR.MATH(-58.55,1,-1)": "-58",
-		"=_xlfn.FLOOR.MATH(-58.55,1,1)":  "-59", // should be -58
-		"=_xlfn.FLOOR.MATH(-58.55,10)":   "-60",
+		"=_xlfn.FLOOR.MATH(58.55)":                  "58",
+		"=_xlfn.FLOOR.MATH(58.55,0.1)":              "58.5",
+		"=_xlfn.FLOOR.MATH(58.55,5)":                "55",
+		"=_xlfn.FLOOR.MATH(58.55,1,1)":              "58",
+		"=_xlfn.FLOOR.MATH(-58.55,1)":               "-59",
+		"=_xlfn.FLOOR.MATH(-58.55,1,-1)":            "-58",
+		"=_xlfn.FLOOR.MATH(-58.55,1,1)":             "-59", // should be -58
+		"=_xlfn.FLOOR.MATH(-58.55,10)":              "-60",
+		"=_xlfn.FLOOR.MATH(_xlfn.FLOOR.MATH(1),10)": "0",
 		// _xlfn.FLOOR.PRECISE
-		"=_xlfn.FLOOR.PRECISE(26.75,0.1)": "26.700000000000003",
-		"=_xlfn.FLOOR.PRECISE(26.75,0.5)": "26.5",
-		"=_xlfn.FLOOR.PRECISE(26.75,1)":   "26",
-		"=_xlfn.FLOOR.PRECISE(26.75)":     "26",
-		"=_xlfn.FLOOR.PRECISE(26.75,10)":  "20",
-		"=_xlfn.FLOOR.PRECISE(26.75,0)":   "0",
-		"=_xlfn.FLOOR.PRECISE(-26.75,1)":  "-27",
-		"=_xlfn.FLOOR.PRECISE(-26.75,-1)": "-27",
-		"=_xlfn.FLOOR.PRECISE(-26.75,-5)": "-30",
+		"=_xlfn.FLOOR.PRECISE(26.75,0.1)":                     "26.700000000000003",
+		"=_xlfn.FLOOR.PRECISE(26.75,0.5)":                     "26.5",
+		"=_xlfn.FLOOR.PRECISE(26.75,1)":                       "26",
+		"=_xlfn.FLOOR.PRECISE(26.75)":                         "26",
+		"=_xlfn.FLOOR.PRECISE(26.75,10)":                      "20",
+		"=_xlfn.FLOOR.PRECISE(26.75,0)":                       "0",
+		"=_xlfn.FLOOR.PRECISE(-26.75,1)":                      "-27",
+		"=_xlfn.FLOOR.PRECISE(-26.75,-1)":                     "-27",
+		"=_xlfn.FLOOR.PRECISE(-26.75,-5)":                     "-30",
+		"=_xlfn.FLOOR.PRECISE(_xlfn.FLOOR.PRECISE(26.75),-5)": "25",
 		// GCD
 		"=GCD(0)":        "0",
 		`=GCD("",1)`:     "1",
@@ -242,61 +251,71 @@ func TestCalcCellValue(t *testing.T) {
 		"=GCD(15,10,25)": "5",
 		"=GCD(0,8,12)":   "4",
 		"=GCD(7,2)":      "1",
+		"=GCD(1,GCD(1))": "1",
 		// INT
 		"=INT(100.9)":  "100",
 		"=INT(5.22)":   "5",
 		"=INT(5.99)":   "5",
 		"=INT(-6.1)":   "-7",
 		"=INT(-100.9)": "-101",
+		"=INT(INT(0))": "0",
 		// ISO.CEILING
-		"=ISO.CEILING(22.25)":      "23",
-		"=ISO.CEILING(22.25,1)":    "23",
-		"=ISO.CEILING(22.25,0.1)":  "22.3",
-		"=ISO.CEILING(22.25,10)":   "30",
-		"=ISO.CEILING(-22.25,1)":   "-22",
-		"=ISO.CEILING(-22.25,0.1)": "-22.200000000000003",
-		"=ISO.CEILING(-22.25,5)":   "-20",
-		"=ISO.CEILING(-22.25,0)":   "0",
+		"=ISO.CEILING(22.25)":              "23",
+		"=ISO.CEILING(22.25,1)":            "23",
+		"=ISO.CEILING(22.25,0.1)":          "22.3",
+		"=ISO.CEILING(22.25,10)":           "30",
+		"=ISO.CEILING(-22.25,1)":           "-22",
+		"=ISO.CEILING(-22.25,0.1)":         "-22.200000000000003",
+		"=ISO.CEILING(-22.25,5)":           "-20",
+		"=ISO.CEILING(-22.25,0)":           "0",
+		"=ISO.CEILING(1,ISO.CEILING(1,0))": "0",
 		// LCM
-		"=LCM(1,5)":      "5",
-		"=LCM(15,10,25)": "150",
-		"=LCM(1,8,12)":   "24",
-		"=LCM(7,2)":      "14",
-		"=LCM(7)":        "7",
-		`=LCM("",1)`:     "1",
-		`=LCM(0,0)`:      "0",
+		"=LCM(1,5)":        "5",
+		"=LCM(15,10,25)":   "150",
+		"=LCM(1,8,12)":     "24",
+		"=LCM(7,2)":        "14",
+		"=LCM(7)":          "7",
+		`=LCM("",1)`:       "1",
+		`=LCM(0,0)`:        "0",
+		`=LCM(0,LCM(0,0))`: "0",
 		// LN
-		"=LN(1)":   "0",
-		"=LN(100)": "4.605170185988092",
-		"=LN(0.5)": "-0.693147180559945",
+		"=LN(1)":       "0",
+		"=LN(100)":     "4.605170185988092",
+		"=LN(0.5)":     "-0.693147180559945",
+		"=LN(LN(100))": "1.527179625807901",
 		// LOG
-		"=LOG(64,2)":  "6",
-		"=LOG(100)":   "2",
-		"=LOG(4,0.5)": "-2",
-		"=LOG(500)":   "2.698970004336019",
+		"=LOG(64,2)":     "6",
+		"=LOG(100)":      "2",
+		"=LOG(4,0.5)":    "-2",
+		"=LOG(500)":      "2.698970004336019",
+		"=LOG(LOG(100))": "0.301029995663981",
 		// LOG10
-		"=LOG10(100)":   "2",
-		"=LOG10(1000)":  "3",
-		"=LOG10(0.001)": "-3",
-		"=LOG10(25)":    "1.397940008672038",
+		"=LOG10(100)":        "2",
+		"=LOG10(1000)":       "3",
+		"=LOG10(0.001)":      "-3",
+		"=LOG10(25)":         "1.397940008672038",
+		"=LOG10(LOG10(100))": "0.301029995663981",
 		// MOD
-		"=MOD(6,4)":      "2",
-		"=MOD(6,3)":      "0",
-		"=MOD(6,2.5)":    "1",
-		"=MOD(6,1.333)":  "0.668",
-		"=MOD(-10.23,1)": "0.77",
+		"=MOD(6,4)":        "2",
+		"=MOD(6,3)":        "0",
+		"=MOD(6,2.5)":      "1",
+		"=MOD(6,1.333)":    "0.668",
+		"=MOD(-10.23,1)":   "0.77",
+		"=MOD(MOD(1,1),1)": "0",
 		// MROUND
-		"=MROUND(333.7,0.5)":   "333.5",
-		"=MROUND(333.8,1)":     "334",
-		"=MROUND(333.3,2)":     "334",
-		"=MROUND(555.3,400)":   "400",
-		"=MROUND(555,1000)":    "1000",
-		"=MROUND(-555.7,-1)":   "-556",
-		"=MROUND(-555.4,-1)":   "-555",
-		"=MROUND(-1555,-1000)": "-2000",
+		"=MROUND(333.7,0.5)":     "333.5",
+		"=MROUND(333.8,1)":       "334",
+		"=MROUND(333.3,2)":       "334",
+		"=MROUND(555.3,400)":     "400",
+		"=MROUND(555,1000)":      "1000",
+		"=MROUND(-555.7,-1)":     "-556",
+		"=MROUND(-555.4,-1)":     "-555",
+		"=MROUND(-1555,-1000)":   "-2000",
+		"=MROUND(MROUND(1,1),1)": "1",
 		// MULTINOMIAL
-		"=MULTINOMIAL(3,1,2,5)":    "27720",
-		`=MULTINOMIAL("",3,1,2,5)`: "27720",
+		"=MULTINOMIAL(3,1,2,5)":        "27720",
+		`=MULTINOMIAL("",3,1,2,5)`:     "27720",
+		"=MULTINOMIAL(MULTINOMIAL(1))": "1",
 		// _xlfn.MUNIT
 		"=_xlfn.MUNIT(4)": "",
 		// ODD
@@ -307,81 +326,96 @@ func TestCalcCellValue(t *testing.T) {
 		"=ODD(-1.3)":   "-3",
 		"=ODD(-10)":    "-11",
 		"=ODD(-3)":     "-3",
+		"=ODD(ODD(1))": "1",
 		// PI
 		"=PI()": "3.141592653589793",
 		// POWER
-		"=POWER(4,2)": "16",
+		"=POWER(4,2)":          "16",
+		"=POWER(4,POWER(1,1))": "4",
 		// PRODUCT
-		"=PRODUCT(3,6)":    "18",
-		`=PRODUCT("",3,6)`: "18",
+		"=PRODUCT(3,6)":            "18",
+		`=PRODUCT("",3,6)`:         "18",
+		`=PRODUCT(PRODUCT(1),3,6)`: "18",
 		// QUOTIENT
-		"=QUOTIENT(5,2)":     "2",
-		"=QUOTIENT(4.5,3.1)": "1",
-		"=QUOTIENT(-10,3)":   "-3",
+		"=QUOTIENT(5,2)":             "2",
+		"=QUOTIENT(4.5,3.1)":         "1",
+		"=QUOTIENT(-10,3)":           "-3",
+		"=QUOTIENT(QUOTIENT(1,2),3)": "0",
 		// RADIANS
-		"=RADIANS(50)":   "0.872664625997165",
-		"=RADIANS(-180)": "-3.141592653589793",
-		"=RADIANS(180)":  "3.141592653589793",
-		"=RADIANS(360)":  "6.283185307179586",
+		"=RADIANS(50)":           "0.872664625997165",
+		"=RADIANS(-180)":         "-3.141592653589793",
+		"=RADIANS(180)":          "3.141592653589793",
+		"=RADIANS(360)":          "6.283185307179586",
+		"=RADIANS(RADIANS(360))": "0.109662271123215",
 		// ROMAN
-		"=ROMAN(499,0)":   "CDXCIX",
-		"=ROMAN(1999,0)":  "MCMXCIX",
-		"=ROMAN(1999,1)":  "MLMVLIV",
-		"=ROMAN(1999,2)":  "MXMIX",
-		"=ROMAN(1999,3)":  "MVMIV",
-		"=ROMAN(1999,4)":  "MIM",
-		"=ROMAN(1999,-1)": "MCMXCIX",
-		"=ROMAN(1999,5)":  "MIM",
+		"=ROMAN(499,0)":       "CDXCIX",
+		"=ROMAN(1999,0)":      "MCMXCIX",
+		"=ROMAN(1999,1)":      "MLMVLIV",
+		"=ROMAN(1999,2)":      "MXMIX",
+		"=ROMAN(1999,3)":      "MVMIV",
+		"=ROMAN(1999,4)":      "MIM",
+		"=ROMAN(1999,-1)":     "MCMXCIX",
+		"=ROMAN(1999,5)":      "MIM",
+		"=ROMAN(1999,ODD(1))": "MLMVLIV",
 		// ROUND
-		"=ROUND(100.319,1)": "100.30000000000001",
-		"=ROUND(5.28,1)":    "5.300000000000001",
-		"=ROUND(5.9999,3)":  "6.000000000000002",
-		"=ROUND(99.5,0)":    "100",
-		"=ROUND(-6.3,0)":    "-6",
-		"=ROUND(-100.5,0)":  "-101",
-		"=ROUND(-22.45,1)":  "-22.5",
-		"=ROUND(999,-1)":    "1000",
-		"=ROUND(991,-1)":    "990",
+		"=ROUND(100.319,1)":       "100.30000000000001",
+		"=ROUND(5.28,1)":          "5.300000000000001",
+		"=ROUND(5.9999,3)":        "6.000000000000002",
+		"=ROUND(99.5,0)":          "100",
+		"=ROUND(-6.3,0)":          "-6",
+		"=ROUND(-100.5,0)":        "-101",
+		"=ROUND(-22.45,1)":        "-22.5",
+		"=ROUND(999,-1)":          "1000",
+		"=ROUND(991,-1)":          "990",
+		"=ROUND(ROUND(100,1),-1)": "100",
 		// ROUNDDOWN
-		"=ROUNDDOWN(99.999,1)":   "99.9",
-		"=ROUNDDOWN(99.999,2)":   "99.99000000000002",
-		"=ROUNDDOWN(99.999,0)":   "99",
-		"=ROUNDDOWN(99.999,-1)":  "90",
-		"=ROUNDDOWN(-99.999,2)":  "-99.99000000000002",
-		"=ROUNDDOWN(-99.999,-1)": "-90",
+		"=ROUNDDOWN(99.999,1)":            "99.9",
+		"=ROUNDDOWN(99.999,2)":            "99.99000000000002",
+		"=ROUNDDOWN(99.999,0)":            "99",
+		"=ROUNDDOWN(99.999,-1)":           "90",
+		"=ROUNDDOWN(-99.999,2)":           "-99.99000000000002",
+		"=ROUNDDOWN(-99.999,-1)":          "-90",
+		"=ROUNDDOWN(ROUNDDOWN(100,1),-1)": "100",
 		// ROUNDUP`
-		"=ROUNDUP(11.111,1)":   "11.200000000000001",
-		"=ROUNDUP(11.111,2)":   "11.120000000000003",
-		"=ROUNDUP(11.111,0)":   "12",
-		"=ROUNDUP(11.111,-1)":  "20",
-		"=ROUNDUP(-11.111,2)":  "-11.120000000000003",
-		"=ROUNDUP(-11.111,-1)": "-20",
+		"=ROUNDUP(11.111,1)":          "11.200000000000001",
+		"=ROUNDUP(11.111,2)":          "11.120000000000003",
+		"=ROUNDUP(11.111,0)":          "12",
+		"=ROUNDUP(11.111,-1)":         "20",
+		"=ROUNDUP(-11.111,2)":         "-11.120000000000003",
+		"=ROUNDUP(-11.111,-1)":        "-20",
+		"=ROUNDUP(ROUNDUP(100,1),-1)": "100",
 		// SEC
 		"=_xlfn.SEC(-3.14159265358979)": "-1",
 		"=_xlfn.SEC(0)":                 "1",
+		"=_xlfn.SEC(_xlfn.SEC(0))":      "0.54030230586814",
 		// SECH
 		"=_xlfn.SECH(-3.14159265358979)": "0.086266738334055",
 		"=_xlfn.SECH(0)":                 "1",
+		"=_xlfn.SECH(_xlfn.SECH(0))":     "0.648054273663886",
 		// SIGN
 		"=SIGN(9.5)":        "1",
 		"=SIGN(-9.5)":       "-1",
 		"=SIGN(0)":          "0",
 		"=SIGN(0.00000001)": "1",
 		"=SIGN(6-7)":        "-1",
+		"=SIGN(SIGN(-1))":   "-1",
 		// SIN
 		"=SIN(0.785398163)": "0.707106780905509",
+		"=SIN(SIN(1))":      "0.745624141665558",
 		// SINH
-		"=SINH(0)":   "0",
-		"=SINH(0.5)": "0.521095305493747",
-		"=SINH(-2)":  "-3.626860407847019",
+		"=SINH(0)":       "0",
+		"=SINH(0.5)":     "0.521095305493747",
+		"=SINH(-2)":      "-3.626860407847019",
+		"=SINH(SINH(0))": "0",
 		// SQRT
-		"=SQRT(4)":  "2",
-		`=SQRT("")`: "0",
+		"=SQRT(4)":        "2",
+		"=SQRT(SQRT(16))": "2",
 		// SQRTPI
-		"=SQRTPI(5)":   "3.963327297606011",
-		"=SQRTPI(0.2)": "0.792665459521202",
-		"=SQRTPI(100)": "17.72453850905516",
-		"=SQRTPI(0)":   "0",
+		"=SQRTPI(5)":         "3.963327297606011",
+		"=SQRTPI(0.2)":       "0.792665459521202",
+		"=SQRTPI(100)":       "17.72453850905516",
+		"=SQRTPI(0)":         "0",
+		"=SQRTPI(SQRTPI(0))": "0",
 		// SUM
 		"=SUM(1,2)":                           "3",
 		`=SUM("",1,2)`:                        "3",
@@ -415,27 +449,33 @@ func TestCalcCellValue(t *testing.T) {
 		"=SUMSQ(A1:A4)":            "14",
 		"=SUMSQ(A1,B1,A2,B2,6)":    "82",
 		`=SUMSQ("",A1,B1,A2,B2,6)`: "82",
+		`=SUMSQ(1,SUMSQ(1))`:       "2",
 		// TAN
 		"=TAN(1.047197551)": "1.732050806782486",
 		"=TAN(0)":           "0",
+		"=TAN(TAN(0))":      "0",
 		// TANH
-		"=TANH(0)":   "0",
-		"=TANH(0.5)": "0.46211715726001",
-		"=TANH(-2)":  "-0.964027580075817",
+		"=TANH(0)":       "0",
+		"=TANH(0.5)":     "0.46211715726001",
+		"=TANH(-2)":      "-0.964027580075817",
+		"=TANH(TANH(0))": "0",
 		// TRUNC
-		"=TRUNC(99.999,1)":   "99.9",
-		"=TRUNC(99.999,2)":   "99.99",
-		"=TRUNC(99.999)":     "99",
-		"=TRUNC(99.999,-1)":  "90",
-		"=TRUNC(-99.999,2)":  "-99.99",
-		"=TRUNC(-99.999,-1)": "-90",
+		"=TRUNC(99.999,1)":    "99.9",
+		"=TRUNC(99.999,2)":    "99.99",
+		"=TRUNC(99.999)":      "99",
+		"=TRUNC(99.999,-1)":   "90",
+		"=TRUNC(-99.999,2)":   "-99.99",
+		"=TRUNC(-99.999,-1)":  "-90",
+		"=TRUNC(TRUNC(1),-1)": "0",
 		// Statistical Functions
 		// COUNTA
 		`=COUNTA()`:                       "0",
 		`=COUNTA(A1:A5,B2:B5,"text",1,2)`: "8",
+		`=COUNTA(COUNTA(1))`:              "1",
 		// MEDIAN
-		"=MEDIAN(A1:A5,12)": "2",
-		"=MEDIAN(A1:A5)":    "1.5",
+		"=MEDIAN(A1:A5,12)":               "2",
+		"=MEDIAN(A1:A5)":                  "1.5",
+		"=MEDIAN(A1:A5,MEDIAN(A1:A5,12))": "2",
 		// Information Functions
 		// ISBLANK
 		"=ISBLANK(A1)": "FALSE",
@@ -706,8 +746,8 @@ func TestCalcCellValue(t *testing.T) {
 		// MULTINOMIAL
 		`=MULTINOMIAL("X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
 		// _xlfn.MUNIT
-		"=_xlfn.MUNIT()":    "MUNIT requires 1 numeric argument",           // not support currently
-		`=_xlfn.MUNIT("X")`: "strconv.Atoi: parsing \"X\": invalid syntax", // not support currently
+		"=_xlfn.MUNIT()":    "MUNIT requires 1 numeric argument",                 // not support currently
+		`=_xlfn.MUNIT("X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax", // not support currently
 		// ODD
 		"=ODD()":    "ODD requires 1 numeric argument",
 		`=ODD("X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
@@ -732,8 +772,8 @@ func TestCalcCellValue(t *testing.T) {
 		// RAND
 		"=RAND(1)": "RAND accepts no arguments",
 		// RANDBETWEEN
-		`=RANDBETWEEN("X",1)`: "strconv.ParseInt: parsing \"X\": invalid syntax",
-		`=RANDBETWEEN(1,"X")`: "strconv.ParseInt: parsing \"X\": invalid syntax",
+		`=RANDBETWEEN("X",1)`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
+		`=RANDBETWEEN(1,"X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
 		"=RANDBETWEEN()":      "RANDBETWEEN requires 2 numeric arguments",
 		"=RANDBETWEEN(2,1)":   "#NUM!",
 		// ROMAN
@@ -770,6 +810,7 @@ func TestCalcCellValue(t *testing.T) {
 		`=SINH("X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
 		// SQRT
 		"=SQRT()":    "SQRT requires 1 numeric argument",
+		`=SQRT("")`:  "strconv.ParseFloat: parsing \"\": invalid syntax",
 		`=SQRT("X")`: "strconv.ParseFloat: parsing \"X\": invalid syntax",
 		"=SQRT(-1)":  "#NUM!",
 		// SQRTPI