Crimson Editor – Help Topics – Built-in Calculator


Crimson Editor is equiped with a calculator that can evaluate simple expressions. If you want to calculate a simple expression, use Crimson Editor built-in calculator to get the answer quickly.

Usage Examples

Following examples show how to use Crimson Editor built-in calculator:

  1. Type in the expression you want to evaluate in Crimson Editor. The whole expression should be written in one line.

  2. Press Ctrl+Enter to calculate the expression when the caret is in the line of expression.

    • Example:

    • 3.14 * (2.43 + 0.91) <– press Ctrl+Enter when the caret is in the expression line
    • = 10.487600 <– you will get the answer immediately

There are two special variables in Crimson Editor calculator:

  1. $ans – If you want to use the value that was evaluated in the earler step, use a special variable named $ans.

  2. $pi – The value of the variable $pi is 3.1415926535.

    • Example:

    • $ans / $pi
    • = 3.338307

Crimson Editor supports basic mathematics functions which are very similar to those used in C math library.

    • Example:

    • sin(1.2) + atan2(3.2, 4.3)
    • = 1.571809

Following list shows basic mathematics functions supported by Crimson Editor:

abs, fabs, mod, fmod, ceil, floor, round, min, max, acos, asin, atan, atan2, cos, sin, tan, cosh, sinh, tanh, exp, log, log10, pow, sqr, sqrt

Date functions, those are frequently used in financial problems, are now available in Crimson Editor 3.45. Following list shows date functions supported by Crimson Editor:

today, yeardays, monthdays, date2days, days2date, eomday, eomdate, weekday, isbizdate, nbizdate, pbizdate, adddays, addmonths, addterms, days360, days365, daysact, daysbet, monthsbet, termsbet, termfrac, yearfrac

 

Mathematics Functions

abs, fabsfabs(x) - absolute value functions
returns the absolute value of x, |x|.

mod, fmodfmod(x, y) - remainder functions
returns the remainder f of the division of x by y, where f has the same sign as x, such that x=iy+f for some integer i, and |f| < |y|.

ceil ceil(x) - ceiling function
returns the smallest integer not less than x.

floor floor(x) - floor function
returns the largest integer not greater than x.

round round(x) - round function
rounds its argument to the nearest integral value.

min min(x, y) - minimum
returns the minimum of a pair of values

max max(x, y) - maximum
returns the maximum of a pair of values

acos acos(x) - arccosine function
returns the arccosine of x in the range 0 to pi.

asin asin(x) - arcsine function
returns the arcsine of x in the range -pi/2 to pi/2.

atan atan(x) - arctangent function
returns the arctangent of x in the range -pi/2 to pi/2.

atan2 atan2(y, x) - arctangent-and-quadrant function
returns the arctangent of y/x, in the range -pi to pi, using the signs of both arguments to determine the quadrant of the return value.

cos cos(x) - cosine function
returns the cosine of x (x specified in radians).

sin sin(x) - sine function
returns the sine of x (x specified in radians).

tan tan(x) - tangent function
returns the tangent of x (x specified in radians).

cosh cosh(x) - hyperbolic cosine function
returns the hyperbolic cosine of its argument.

sinh sinh(x) - hyperbolic sine function
returns the hyperbolic sine of its argument.

tanh tanh(x) - hyperbolic tangent function
returns the hyperbolic tangent of its argument.

exp exp(x) - exponential function
returns e^x.

log log(x) - natural logarithm function
returns the natural logarithm of x. The value of x must be greater than zero.

log10 log10(x) - common logarithm function
returns the logarithm base ten of x. The value of x must be greater than zero.

pow pow(x, y) - power function
returns x^y. If x is negative, y must be an integer value.

sqr sqr(x) - square function
returns x*x.

sqrt sqrt(x) - square root function
returns the non-negative square root of x. The value of x must not be less than zero.

 

Date Functions

today today() - current date
returns the current date as a number. i.g. 20020807 (Aug. 07, 2002)

yeardays yeardays(year) - number of days in a year
returns the actual number of days in the given year.

monthdaysmonthdays(year, month) - number of days in a month
returns the actual number of days in the given month.

date2daysdate2days(date) - date to serial date number conversion
returns the number of days to the given date since the Epoch.

days2datedays2date(date) - serial date number to date conversion
date2days(date) returns the date calculated from the given number of days since the Epoch.

eomday eomday(year, month) - last day of month
returns the last day of the month for the given year and month.

eomdate eomdate(year, month) - last date of month
returns the last date of the month for the given year and month.

weekday weekday(date) - day of the week

returns the day of the week in numeric form.

weekday:
  • 0 = Sun
  • 1 = Mon
  • 2 = Tue
  • 3 = Wed
  • 4 = Thu
  • 5 = Fri
  • 6 = Sat
isbizdateisbizday(date) - true for date that is business day
returns 1 if date is a business day and 0 otherwise.

nbizdate nbizdate(date) - next business day
returns the date of the next business day from the reference date.

pbizdate pbizdate(date) - previous business day
returns the date of the previous business day from the reference date.

adddays adddays(date, days) - date added by given days
returns the reference date added by given days.

addmonthsaddmonths(date, months, end_month) - date added by given months

returns the reference date added by given months.

end_month:
  • 0 = actual
  • 1 = end month
addterms addterms(date, terms, frequency, end_month) - date added by given terms

returns the reference date added by given terms.

frequency:
  • 1 = annual
  • 2 = semiannual
  • 4 = quarterly
  • 6 = bimonthly
  • 12 = monthly
end_month:
  • 0 = actual
  • 1 = end month
days360 days360(start_date, end_date, european) - days between dates based on 360-day year

returns the number of days between start_date and end_date based on a 360-day year.

european:
  • 0 = american
  • 1 = european
days365 days365(start_date, end_date) - days between dates based on 365-day year
returns the number of days between start_date and end_date based on a 365-day year.

daysact daysact(start_date, end_date) - actual number of days between dates
returns the actual number of days between two dates.

daysbet daysbet(start_date, end_date, basis) - days between dates for any day-count basis

returns the number of days between start_date and end_date using the given day-count basis.

basis:
  • 0 = actual/actual
  • 1 = actual/360
  • 2 = actual/365
  • 3 = 30/360
  • 4 = 30E/360
  • 5 = NL/365
monthsbetmonthsbet(start_date, end_date) - months between dates
returns the number of months between start_date and end_date.

termsbet termsbet(start_date, end_date, frequency) - terms between dates

returns the number of terms between start_date and end_date.

frequency:
  • 1 = annual
  • 2 = semiannual
  • 4 = quarterly
  • 6 = bimonthly
  • 12 = monthly
termfrac termfrac(start_date, end_date, frequency, basis, end_month)- fraction of term between dates

returns a fraction based on the number of days between start_date and end_date using the given day-count basis.

frequency:
  • 1 = annual
  • 2 = semiannual
  • 4 = quarterly
  • 6 = bimonthly
  • 12 = monthly

basis:

  • 0 = actual/actual
  • 1 = actual/360
  • 2 = actual/365
  • 3 = 30/360
  • 4 = 30E/360
  • 5 = NL/365

end_month:

  • 0 = actual
  • 1 = end month
yearfrac yearfrac(start_date, end_date, basis, end_month) - fraction of year between dates

returns a fraction based on the number of days between start_date and end_date using the given day-count basis.

basis:
  • 0 = actual/actual
  • 1 = actual/360
  • 2 = actual/365
  • 3 = 30/360
  • 4 = 30E/360
  • 5 = NL/365
end_month:
  • 0 = actual
  • 1 = end month


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