The following are transcendental functions that SheerPower performs:

ABS returns the absolute value of a specified numeric expression.

Example 6-15 ABS function

print abs(-5) 5

6.2.2 ACOS(num_expr)

The arccosine of X (ACOS(x)) returns the angle whose COS is x. The angle is returned in radians. ACOS has to be between -1 and +1 (inclusive).

Example 6-16 ACOS function

print acos(.75) .722734247813

6.2.3 ANGLE(num_expr, num_expr)

Given X and Y coordinates, the ANGLE function returns the angle from 0,0 in radians.

Example 6-17 ANGLE function

print angle(4,9) 1.152571997216

6.2.4 ASIN(num_expr)

The arcsine of X (ASIN(x)) returns the angle whose SIN is x. The angle is returned in radians. ASIN has to be between -1 and +1 (inclusive).

Example 6-18 ASIN function

print asin(.3) .304692654015

6.2.5 ATN(num_expr)

Arctangent (ATN) returns the angle, in radians, of a specified tangent.

Example 6-19 ATN function

print atn(33) 1.540502566876

6.2.6 COS(num_expr)

COS returns the cosine of an angle the user specifies in radians.

Example 6-20 COS function

print cos(64) .39185723043

6.2.7 COSH(num_expr)

COSH returns the hyperbolic cosine of a passed real number.

Example 6-21 COSH function

print cosh(31) 14524424832623.712890625

6.2.8 COT(num_expr)

Cotangent (COT(X)) is equivalent to 1/TAN(X).

Example 6-22 COT function

print cot(31) -2.2640027937804799

6.2.9 CSC(num_expr)

CSC(x) is the cosecant of X. It is shorthand for 1/SIN(x).

Example 6-23 CSC function

print csc(187) -1.0028370028157145

6.2.10 DEG(num_expr)

Given an angle in radians, the DEG function returns the number of degrees.

Example 6-24 DEG function

print deg(14) 802.140913183152502

6.2.11 EXP(num_expr)

EXP function returns the value of the mathematical constant, "e", raised to a specified power.

Example 6-25 EXP function

print exp(5) 148.413159102577

6.2.12 LOG(num_expr)

LOG returns the natural logarithm of a specified number.

Example 6-26 LOG function

print log(100) 4.605170186

6.2.13 LOG2(num_expr)

LOG2 returns a number's base 2 logarithm.

Example 6-27 LOG2 function

print log2(100) 6.643856189775

6.2.14 LOG10(num_expr)

LOG10 returns a number's common logarithm.

Example 6-28 LOG10 function

print log10(100) 2

6.2.15 PI

Returns the value 3.1415926535897932.

Example 6-29 PI function

print pi 3.1415926535897932

6.2.16 RAD(num_expr)

Given a measurement in degrees, the RAD function returns the number of radians.

Example 6-30 RAD function

print rad(85) 1.4835298641951801

6.2.17 SEC(num_expr)

SEC returns a secant of a given angle (1/COS(num_expr)). num_expr is a passed angle.

Example 6-31 SEC function

print sec(5) 3.5253200858189003

6.2.18 SGN(num_expr)

SGN returns the sign of a number. It returns a +1 if the expression is positive, a -1 if the expression is negative, and 0 if the expression is zero.

Example 6-32 SGN function

print sgn(-238) print sgn(238) print sgn(0) -1 1 0

6.2.19 SIN(num_expr)

SIN returns the sine of an angle specified in radians.

Example 6-33 SIN function

print sin(23) -.846220404

6.2.20 SINH(num_expr)

SINH(X) returns the hyperbolic sine X.

Example 6-34 SINH function

print sinh(23) 4872401723.124451637268

6.2.21 SQR(num_expr)

SQR returns the square root of a number.

Example 6-35 SQR function

print sqr(64) 8

6.2.22 TAN(num_expr)

TAN returns the tangent of an angle that is specified in radians.

Example 6-36 TAN function

print tan(0.2) .202710035509

6.2.23 TANH(num_expr)

TANH returns the hyperbolic tangent of the numeric expression given.

Example 6-37 TANH function

print tanh(0.5) .46211715726

6.3 Date and Time Functions

The following are date and time functions that SheerPower performs:

DATE returns today's date in YYDDD format. The 'DDD' is the number of days that have gone by so far this year.

Example 6-38 DATE function

print date 3117

6.3.2 DATE$[(int_expr1, [int_expr2])]

The DATE$ function returns the date in image format. int_expr1 is a given Julian day number, the default is today's date. int_expr2 indicates the desired output format for the date. The Julian day is the number of days since January 1, 1600.

Table 6-1 DATE$ function - integer values

Value (int_expr2)	Output Date Format
0	YYYYMMDD format
1	MMDDYYYY format
2	DDMMYYYY format
3	dd-Mon-yyyy format
4	Month dd, yyyy format

Example 6-39 DATE$ function

print date$ - gives 20010424 print date$(days(date$),1) - gives 04242001 print date$(days(date$),2) - gives 24042001 print date$(days(date$),3) - gives 24-Apr-2001 print date$(days(date$),4) - gives April 20, 2001