Page 138 - Standard Handbook Of Petroleum & Natural Gas Engineering

Computer Applications 123

DASlN Returns the arc sine of an argument
DATAN Returns the arc tangent of one argument
DATAN2 Returns the arc tangent of two arguments [arctan(a,/a,)]
DBLE Converts an argument to double precision
DCOS Returns the cosine of an argument
DCOSH Returns the hyperbolic cosine of an argument
DDlM Returns the positive difference between two arguments
DEXP Returns the exponential e raised to the power of the argument
DINT Truncates the decimal part of an argument
DLOG Returns the natural logarithm of an argument
DLOGlO Returns the common logarithm of an argument
DMAX1 Selects the largest value of several arguments
DMlNl Selects the smallest value of several arguments
DMOD Returns the remainder from division of two arguments
DNINT Returns the whole number ciosest in value to the argument
DPROD Converts the product of two real arguments to double precision
DSlGN Transfers the sign from one argument to the other
DSlN Returns the sine of an argument
DSlNH Returns the hyperbolic sine of an argument
DSQRT Returns the square root of an argument
DTAN Returns the tangent of an argument
DTANH Returns the hyperbolic tangent of an argument
IDINT Converts the argument to the nearest integer value

Complex
CABS Returns the absolute value of an argument
ccos Returns the cosine of an angle
CEXP Returns the exponential e raised to the power of the argument
CLOG Returns the natural logarithm of the argument
CMPLX Converts the argument to a complex number
CONJ Returns the conjugate of a complex function
CSQRT Returns the square root of an argument
CSlN Returns the sine of an argument-

a call to CALCSUB as before will return a value through P1 to PVAL and
a call
CALL NEW C ALC( MAT, K, L,PVAL)
will transfer control in at the ENTRY statement and return a value through P2
to PVAL. A BLOCK DATA subprogram enters data into the variables declared
in a labeled COMMON block and has the form
BLOCK DATA
(DATA, DIMENSION, IMPLICIT, TYPE, EQUIVALENCE,
COMMON and PARAMETER statements)
END