Radian

Sets radian angle mode.

rand[(numtrials)]

Returns a random number between 0 and 1 for a specified number of trials numtrials.

randBin(numtrials,prob[,numsimulations])

Generates and displays a random real number from a specified Binomial distribution.

randInt( lower,upper [,numtrials])

Generates and displays a random integer within a range specified by lower and upper integer bounds for a specified number of trials numtrials.

randIntNoRep(lowerint,upperint [,numelements])

Returns a random ordered list of integers from a lower integer to an upper integer which may include the lower integer and upper integer. If the optional argument numelements is specified, the first numelements are listed. The first numelements term in the list of random integers are displayed.

randM(rows,columns)

Returns a random matrix of rows × columns.

Max rows x columns = 400 matrix elements.

randNorm(m,s[,numtrials])

Generates and displays a random real number from a specified Normal distribution specified by m and s for a specified number of trials numtrials.

re^qi

Sets the mode to polar complex number mode (re^qi).

Real

Sets mode to display complex results only when you enter complex numbers.

real(value)

Returns the real part of a complex number or list of complex numbers.

RecallGDB n

Restores all settings stored in the graph database variable GDBn.

RecallPic n

Displays the graph and adds the picture stored in Picn.

complex value 4Rect

Displays complex value or list in rectangular format.

RectGC

Sets rectangular graphing coordinates format.

ref(matrix)

Returns the row-echelon form of a matrix.

remainder(dividend, divisor)

Reports the remainder as a whole number from a division of two whole numbers where the divisor is not zero.

remainder(list, divisor)

Reports the remainder as a whole number from a division of two lists where the divisor is not zero.

remainder(dividend, list)

Reports the remainder as a whole number from a division of two whole numbers where the divisor is a list.

remainder(list, list)

Reports the remainder as a whole number from a division of two lists.

Repeatcondition:commands:End:commands

Executes commands until condition is true.

Return

Returns to the calling program.

round(value[,#decimals])

Returns a number, expression, list, or matrix rounded to #decimals ( 9).

ärow(value,matrix,row)

Returns a matrix with row of matrix multiplied by value and stored in row.

row+(matrix,rowA,rowB)

Returns a matrix with rowA of matrix added to rowB and stored in rowB.

ärow+(value,matrix,rowA,rowB)

Returns a matrix with rowA of matrix multiplied by value, added to rowB, and stored in rowB.

rowSwap(matrix,rowA,rowB)

Returns a matrix with rowA of matrix swapped with rowB.

rref(matrix)

Returns the reduced row-echelon form of a matrix.

R4Pr(x,y)

Returns R, given rectangular coordinates x and y or a list of rectangular coordinates.

R4Pq(x,y)

Returns q, given rectangular coordinates x and y or a list of rectangular coordinates.